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Cynomolgus serum is the liquid fraction of blood collected from cynomolgus monkeys (Macaca fascicularis) after the blood has clotted and the clot has been separated out. Because clotting consumes fibrinogen and other coagulation factors, serum differs chemically from plasma, which is collected in tubes containing an anticoagulant such as EDTA or heparin. If your assay requires a matrix free of anticoagulant interference, serum is usually the right choice; if you need fibrinogen or intact clotting factors, plasma is. This article covers how serum is sourced and prepared, what it is used for, and what to confirm before placing an order with a supplier such as Primate Biologicals.

What Cynomolgus Serum Is and How It Differs from Plasma and Whole Blood

All three products start with a blood draw, but the handling after collection determines what you receive:

The practical consequence: serum is the standard matrix for many immunoassays, clinical chemistry panels, and biomarker measurements because it avoids the chelating or anticoagulant effects that EDTA and heparin can introduce. Plasma is preferred when you need coagulation proteins or when you want to minimize the time between draw and processing.

How Serum Is Collected and Processed

Serum preparation depends on letting the sample clot completely before separation. The general sequence is:

1. Blood collection — drawn into a tube without anticoagulant (a plain serum tube or serum separator tube).
2. Clotting — the sample is allowed to stand at room temperature long enough for a firm clot to form. Incomplete clotting is a common source of hemolyzed or fibrin-contaminated serum.
3. Centrifugation — the clot and cells are pelleted, and the supernatant serum is collected.
4. Aliquoting — serum is divided into single-use volumes to avoid repeated freeze-thaw cycles.
5. Storage — frozen, typically at −20 °C or below, until shipment.

Because serum preparation is sensitive to timing and temperature, the supplier's handling protocol matters as much as the donor animal. If your study requires a specific clotting time, processing temperature, or collection tube, state that requirement when you order rather than assuming it is the default.

Common Research Uses

Cynomolgus serum appears in nonhuman primate (NHP) research in several recurring roles:

• Assay controls and blanks — serum from a defined donor population is used as a biological matrix for validating immunoassays and other detection methods.
• Biomarker and clinical chemistry work — measuring analytes that are stable in serum but affected by anticoagulants.
• Toxicology and pharmacology studies — NHPs are a standard large-animal model, and serum is collected alongside other matrices for exposure and safety endpoints.
• Method development — testing whether an assay performs consistently in a primate serum matrix before committing to a full study.

If your application involves a regulated endpoint, confirm with your supplier that the donor health status and documentation meet the standard your study requires.

Specifications to Confirm Before Ordering

The supplier's published FAQ answers several of these directly; others you should raise in your inquiry. A practical checklist:

• Donor origin — Primate Biologicals states it sources all bio-products from primates housed in the United States. If domestic origin matters for your study or import requirements, verify this in writing.
• Anticoagulant — not applicable to serum, but confirm the collection tube type, since this affects downstream compatibility.
• Aliquoting — the supplier states it can aliquot samples to your specifications. Specify volume per aliquot and number of aliquots.
• Sterility and handling — ask whether serum is filtered, how hemolysis is controlled, and what quality checks are performed.
• Documentation — CITES records can be provided for a $100 fee if your shipment requires them.
• Custom requests — the supplier notes that catalog-external inquiries are handled case by case by phone, so unusual matrices or donor criteria should be discussed directly.

Shipping, Storage, and Cold Chain

Primate Biologicals ships all bio-products with either ice packs or dry ice via FedEx, and states that orders are charged to its FedEx account. If you need an alternate carrier, that must be arranged in advance. For serum specifically:

• Confirm whether your shipment will use dry ice (for frozen serum) or ice packs, and make sure your receiving lab can handle that format on arrival.
• Plan storage immediately on receipt — refreezing thawed serum degrades many analytes.
• If you are shipping internationally, the supplier notes it can ship internationally if you can wait for the permits to process. Build permit lead time into your study timeline.

Regulatory and Documentation Considerations

Two items come up repeatedly when ordering NHP-derived material:

• CITES documentation — available for a $100 fee to accompany your order. Confirm whether your destination country or institution requires it before shipping.
• International permits — the supplier will ship internationally subject to permit processing time. This is a schedule risk, not a same-week option.

Payment is accepted by check, Visa, and MasterCard, with a minimum for credit card purchases. The supplier does not collect payment online; every order is verified by phone before payment information is taken, because order requirements vary.

A Short Ordering Walkthrough

1. Define your matrix (serum), volume, aliquot size, and any donor or documentation requirements.
2. Contact the supplier to confirm availability, donor origin, and any custom handling.
3. Confirm shipping method, carrier, and who pays freight.
4. Arrange CITES records or international permits if applicable, and allow processing time.
5. Verify the order by phone and provide payment.
6. Receive, inspect for thaw or hemolysis, and store per your protocol.

The step most often underestimated is permit lead time for international orders — if your study has a fixed start date, start the documentation process before you finalize the order.

Cynomolgus PBMC (peripheral blood mononuclear cells) are primary immune cells isolated from cynomolgus macaque whole blood, used in immunology, infectious disease, vaccine, and biologics research where a non-human primate model is required. If you are ordering from a supplier such as Primate Biologicals, the practical questions are: where the animals are housed, which anticoagulant and aliquot format you need, how the cold chain works, what documentation is required, and how payment is handled. This guide walks through each of those decision points so you can place an order without back-and-forth.

What Cynomolgus PBMC Are and When to Use Them

PBMC are the mononuclear cell fraction — typically lymphocytes and monocytes — separated from whole blood. Cynomolgus (cyno) macaque PBMC are chosen when your assay needs a primate immune system rather than a rodent or human one, for example:

• Cross-species immune response comparisons in vaccine or immunogenicity studies
• T-cell or B-cell functional assays where human reagents cross-react poorly
• Screening biologics for activity against primate targets
• Assays requiring fresh or cryopreserved primary primate cells rather than cell lines

Primate Biologicals lists PBMC alongside serum, plasma, whole blood, CSF, milk, and tissue as available research products, so PBMC can be ordered as a standalone item or alongside matched matrices from the same program.

Sourcing: What to Confirm About the Donor Animals

The supplier states that all bio-products are sourced from primates housed in the United States. That matters for two reasons: domestic housing simplifies logistics and permit questions, and it gives you a defined origin to cite in your study records.

Before ordering, confirm with the supplier:

• Origin and housing location — the site states U.S.-housed primates; ask for this in writing for your records.
• Health and screening status — the public FAQ does not list specific pathogen screening panels, so request the donor health documentation you need for your protocol.
• Species confirmation — verify the samples are cynomolgus macaque specifically, not a mixed or unspecified NHP source.
• Matched samples — if your study needs serum, plasma, or tissue from the same animal, ask whether matched sets are available.

Anticoagulant and Aliquot Customization

Two order details are easy to overlook and hard to fix after shipment:

Anticoagulant. The supplier normally uses EDTA or heparin, and states that other anticoagulants are available on request. This choice affects downstream assays — for example, heparin can interfere with some molecular workflows, while EDTA chelates divalent cations. Tell the supplier your required anticoagulant at the time of order rather than accepting the default.

Aliquoting. The supplier confirms it can aliquot samples to your specifications. If your protocol calls for single-use aliquots to avoid freeze-thaw cycles, specify the volume and number of aliquots per donor before the order is processed.

Both of these are customization requests, so raise them during the order verification call rather than after.

Shipping and Cold Chain

Shipping terms from the supplier's FAQ:

For PBMC specifically, confirm whether your samples ship fresh or cryopreserved, since that determines whether dry ice is required and how much time you have between shipment and use. If you need an alternate carrier, arrange it before the order is finalized.

Documentation: CITES and International Orders

• CITES records can accompany your order for a $100 fee. If your institution or country requires CITES documentation for primate-derived material, budget for this and request it at order time.
• International shipping is possible, but the supplier notes it depends on permit processing time. Build that lead time into your study schedule rather than assuming a standard domestic turnaround.

Payment and Order Verification

The supplier currently accepts checks, Visa, and MasterCard, and notes there is a minimum for credit card purchases. There is no online payment form — every order is verified by phone, and payment information is collected during that call because each order has unique requirements.

Practical implication: expect a phone confirmation step. Have your purchase order details, shipping address, anticoagulant and aliquot specifications, and documentation requests ready before that call so the order can be finalized in one pass.

Ordering Checklist

Before you place a Cynomolgus PBMC order, confirm:

1. Species and origin (cynomolgus macaque, U.S.-housed) documented for your records
2. Donor health/screening documentation sufficient for your protocol
3. Required anticoagulant (EDTA, heparin, or other) specified
4. Aliquot volumes and counts specified
5. Fresh vs. cryopreserved format, and matching cold-chain method
6. Carrier preference and who pays shipping
7. CITES documentation needed (and the $100 fee) if applicable
8. International permit lead time, if shipping outside the U.S.
9. Payment method and any credit card minimum
10. Availability of custom services — the supplier also offers DNA/RNA/protein extraction, custom primary cell isolations, contract assay work, client-specific media, and primates for long-term research projects

If your requirement is not in the catalog, the supplier states you can call to discuss it, though fulfillment is not guaranteed. For anything outside standard PBMC orders — custom isolations, assay work, or long-term animal access — contact the supplier directly with your specifications.

Primate cells are living cell products—most commonly PBMC and custom primary cell isolations—supplied for nonhuman primate (NHP) research, as distinct from acellular products like serum and plasma. If your work needs viable cells for culture, flow cytometry, or functional assays, you're in the market for primate cells specifically; if you need antibodies, hormones, or other soluble analytes, serum or plasma is the relevant product. This guide covers what's available, how sourcing and documentation work, and what to confirm before placing an order.

What counts as a "primate cell" product

The term covers several product categories that behave differently in the lab:

• PBMC (peripheral blood mononuclear cells) — isolated from whole blood, the standard starting material for immune cell work. Cynomolgus PBMC is a common catalog item.
• Custom primary cell isolations — cells isolated from primate biospecimens to a client's specification, rather than pulled from a fixed catalog.
• Tissue-derived cells — tissue samples are offered as whole tissue, paraffin-embedded sections, or frozen sections, which can support downstream cell work or histology.
• Extraction services — DNA, RNA, and protein extraction from primate biospecimens, for labs that want nucleic acid or protein rather than intact cells.

Serum, plasma, whole blood, CSF, and milk are also supplied, but they are fluid or acellular products. Keep the distinction clear when you order: a request for "primate cells" should not be filled with serum, and vice versa.

Species and sourcing: why it matters for your data

Primate Biologicals sources all bio-products from primates housed in the United States. For researchers, two things follow from that:

1. Species identity is part of the experimental design. Cynomolgus and Rhesus monkeys differ in immune markers, receptor expression, and cross-reactivity with reagents, so the species must match your assay and your model.
2. Donor documentation affects reproducibility and compliance. If you need CITES records to accompany an order, the supplier can provide them for a $100 fee. Plan for that cost and lead time if your institution or destination country requires the paperwork.

Formats and customization available

Orders are not limited to a fixed catalog. Available customizations include:

If the item you need isn't listed in the catalog, the supplier states it will try to meet the request but cannot guarantee fulfillment—so raise unusual requirements early rather than assuming availability.

Shipping, handling, and international orders

• Cold chain: All bio-products ship with either ice packs or dry ice via FedEx. If you want a different carrier, contact the supplier; orders are charged to the supplier's FedEx account.
• International shipping: Possible, but contingent on permits processing. Build permit lead time into your project schedule before committing to a delivery date.
• Viability planning: Because cells ship on ice or dry ice, confirm receipt timing and handling instructions with your lab so samples aren't left in transit or on a loading dock.

Pre-order checklist

Before you order, get answers to these questions in writing:

• Sourcing location — confirmed as U.S.-housed primates.
• Species and donor details — which species (e.g., Cynomolgus, Rhesus) and what donor information accompanies the sample.
• CITES records — needed? Budget the $100 fee and the processing time.
• Anticoagulant and aliquot specs — state them explicitly; EDTA and heparin are the defaults.
• Minimums — there is a minimum for credit card purchases; ask for the current figure.
• Payment — checks, Visa, and MasterCard are accepted. Payment details are collected by phone after the order is verified, not through a web form, because each order has unique requirements. Expect a verification call rather than an online checkout.
• Custom or unlisted items — call to discuss; fulfillment is best-effort, not guaranteed.

Where to go next

If your question is about the cellular products themselves—PBMC, primary isolations, tissue-derived cells—start with the product catalog and then confirm customization details by phone. If you're working with serum or plasma instead, those are separate product lines with their own handling considerations. Either way, the ordering process runs through a verification call, so have your species, format, aliquot, and documentation requirements ready before you reach out.

Primate serum is the liquid fraction of blood collected from non-human primates (NHPs) after the blood has clotted and the cells and clotting factors have been removed. It is used as a research reagent and sample matrix in immunology, toxicology, infectious disease, and drug development studies where a human-relevant biological model is needed. Primate Biologicals, a supplier of NHP research samples, lists serum among its core products alongside plasma, whole blood, PBMC, CSF, milk, and tissue, sourced from primates housed in the United States.

Serum vs. plasma vs. whole blood

These three products come from the same starting material but differ in how the blood is handled, which changes what the sample contains.

The practical consequence: if your assay depends on clotting factors, serum is the wrong choice. If you need a clean liquid matrix free of cells and fibrinogen, serum is usually preferred.

Source species

Primate Biologicals supplies samples from cynomolgus monkeys, rhesus monkeys, and other NHP species. Species choice typically follows the model your study already uses — cynomolgus and rhesus macaques are the most common NHP models in preclinical research, so their serum is the most frequently requested. The company states that all bio-products are sourced from primates housed in the United States, which matters if your protocol or institution requires domestic origin documentation.

Typical research uses

• Immunogenicity and antibody assays, where serum is the standard matrix
• Toxicology and safety studies in NHP models
• Infectious disease research requiring a primate-relevant matrix
• Assay development and validation where human serum is not appropriate
• Custom extraction work — the supplier offers DNA, RNA, and protein extraction from primate biospecimens

Handling, shipping, and storage

Primate Biologicals ships all bio-products with either ice packs or dry ice via FedEx, and states that all orders are charged to their FedEx account. If you need a different carrier, you must contact them to arrange it. For serum specifically, cold-chain integrity during transit is the main thing to verify on receipt — check that the sample arrived at the expected temperature before logging it into storage.

Customization options

Several order-level details are negotiable rather than fixed:

• Anticoagulant — the supplier normally uses EDTA or heparin, but other anticoagulants are available on request. Note that anticoagulant choice applies to plasma and whole blood; serum by definition is collected without one, so confirm with the supplier how this applies to your specific order.
• Aliquoting — samples can be divided to your specifications.
• CITES documentation — available to accompany your order for a $100 fee.
• International shipping — possible, but only if you can wait for permits to process.
• Client-specific media and custom primary cell isolations — offered as part of their services.
• Long-term research projects — primates are available for extended studies.

Ordering and payment

There is no online checkout. The supplier states that because every order has unique requirements, they call to verify the order and its requirements, and collect payment information at that time. Accepted payment methods are checks, Visa, and MasterCard, with a minimum for credit card purchases. If you need something not listed in the catalog, the company says to call and discuss it — they will try to meet the request but cannot guarantee it.

What to confirm before ordering

1. Species and matrix match your assay (serum vs. plasma vs. whole blood).
2. Required anticoagulant, if ordering plasma or whole blood.
3. Aliquot sizes and container format.
4. Whether you need CITES records (adds $100).
5. Domestic vs. international delivery and permit timeline.
6. Shipping temperature and carrier, and who pays freight.
7. Any custom extraction, isolation, or media requirements.

Primate PBMC (peripheral blood mononuclear cells) are cryopreserved or fresh immune cells—lymphocytes, monocytes, and related populations—isolated from non-human primate blood and used in immunology, vaccine, and infectious disease assays. If you need cynomolgus or rhesus macaque cells with defined anticoagulant, aliquot size, and documentation, a specialized supplier like Primate Biologicals is a reasonable starting point; expect a phone-based quote process rather than an online checkout, and confirm CITES needs and international permit timelines before committing.

What Primate PBMC Are and When You Need Them

PBMC are the fraction of blood cells with a round nucleus—mainly T cells, B cells, NK cells, and monocytes—separated from whole blood by density gradient. They are the standard input for:

• T-cell and NK-cell functional assays (activation, cytokine release, cytotoxicity)
• Vaccine immunogenicity readouts in NHP models
• Infectious disease challenge and neutralization studies
• Flow cytometry panel development where human reagents cross-react

If your study depends on a non-human primate immune response, PBMC are usually the cell product you want rather than whole blood or serum.

Species Choice: Cynomolgus vs. Rhesus

Species selection drives reagent cross-reactivity, background immune data, and regulatory acceptance. The supplier lists cynomolgus and rhesus macaque among its primate sources.

Match species to the model your protocol or prior literature uses—switching species mid-program complicates comparison to historical controls.

Sourcing and Documentation to Verify

Primate Biologicals states it sources all bio-products from primates housed in the United States. That claim matters for traceability and for import/export logistics. Ask for:

• Origin and housing documentation for the specific donor animals
• Pathogen screening results relevant to your assay
• CITES records if your work or shipment requires them—the supplier notes CITES documentation can accompany an order for a $100 fee

CITES documentation is separate from the sample cost and should be requested explicitly, not assumed.

Customization Options

The supplier advertises customization across its NHP biological products. For PBMC specifically, confirm these before ordering:

• Anticoagulant: EDTA or heparin are used normally, with other anticoagulants available on request. State your requirement—anticoagulant can affect downstream cell function.
• Aliquoting: The supplier will aliquot to your specifications. Specify cell count per vial, not just volume.
• Media: Client-specific media is offered as a service, useful if your downstream assay requires a defined formulation.
• Related products: Serum, plasma, whole blood, CSF, milk, and tissue are also available, so a single supplier can cover multiple sample types in one study.

Shipping and Handling

• All bio-products ship with either ice packs or dry ice via FedEx.
• Alternate carriers are possible on request, but orders are charged to the supplier's FedEx account.
• International shipping is possible if you can wait for permits to process—build permit lead time into your study timeline.

For cryopreserved PBMC, confirm whether your shipment arrives on dry ice and that your lab has a validated thaw protocol ready before delivery.

Ordering and Payment Practicalities

• There is no online payment form. Every order is verified by phone, and payment information is collected at that time.
• Accepted payment: checks, Visa, and MasterCard. A minimum applies to credit card purchases—ask for the current minimum.
• Custom or unlisted requests are handled by phone; the supplier states it will try to meet needs it cannot guarantee from the catalog.
• Additional services include DNA, RNA, and protein extraction, custom primary cell isolations, contract assay work, and long-term research project access to primates.

Pre-Order Checklist

1. Confirm species (cynomolgus or rhesus) and cell count per vial.
2. Specify anticoagulant (EDTA, heparin, or other).
3. Request pathogen screening and origin documentation.
4. Ask whether CITES records are needed and budget the $100 fee.
5. Confirm shipping method (ice packs vs. dry ice) and carrier.
6. For international orders, start permit processing early.
7. Call to verify the order and provide payment; ask about the credit card minimum.

Pricing is not published on the site, so treat any budget as an estimate until you receive a phone quote.