Buying research peptides for a university lab can stall on paperwork rather than science: a purchasing card that declines, a supplier that is not yet in the finance system, an invoice missing the line the finance office needs. This guide covers that side of the order.
It walks through purchasing routes, with published procedures from the University of Toronto, Queen’s University and the University of Waterloo as examples; what the Tri-agency Guide on Financial Administration asks of grant-funded purchases; what the Canada Revenue Agency says an invoice must show; and the documents and records to keep once the box arrives. Policies differ between institutions, so read every example as an illustration and check your own.
The short answer
- Your institution’s rules come first. The Tri-agency Guide on Financial Administration, in effect from April 1, 2026, says buying for funded research “must be undertaken in accordance with the administering institution’s relevant policies and processes”.
- Purchasing cards cover low-value buying, with exclusions. The University of Toronto’s card is for “low value goods and services up to specified amounts”, with a $10,000 single-transaction limit before tax and hazardous material among its prohibited categories.
- Bigger or restricted purchases go by purchase order. Outside its approved suppliers, U of T requires a purchase order with at least two written quotes from $25,000; Queen’s allows radioactive materials only by purchase order after a safety review.
- Purchase orders and invoices need a vendor record first. U of T’s vendor process asks for a supplier quote, invoice or contract and, for a supplier operating in Canada, a GST/HST number checked against the CRA registry.
- What an invoice must show depends on the amount. For a customer claiming input tax credits, CRA’s guide lists the supplier’s name, the date and the total for any sale, adds the GST/HST registration number and tax from $100, and the buyer’s name, terms of payment and a description from $500.
- The file outlives the grant. The Tri-agency guide says “All supporting documentation must be kept for at least seven years.”
The purchasing file
Documentation pack · audit trail · the records behind one order
- What it is
- The records showing that a purchase was authorized, paid correctly and received
- Who sets the rules
- Your institution, within funder guidance and tax rules
- Authorization
- Grant recipients authorize purchases “in a manner that can be substantiated” (Tri-agency guide)
- Payment proof
- Card receipt and statement, or an invoice; the packing slip
- Tax details
- Set by the invoice amount (CRA guide RC4022, revision 25)
- Product documents
- Specification, certificate of analysis for the lot, and an SDS where the product is a hazardous product
- Receiving record
- Supplier lot number, date received, storage location, inventory entry
- Retention
- At least seven years for Tri-agency-funded purchases
- What it is not
- A ruling on grant eligibility, which is your institution’s call
What a complete purchasing file can show
- The purchase was authorized and paid under policy
- The item and lot received match the invoice
- That the expense fits a particular grant
- The identity or purity of the material
The file proves process. Eligibility is your institution’s decision, and evidence about the material comes from the lot’s certificate.
How university lab purchasing usually works
Purchasing routes form a ladder, from quick and simple to slow and controlled, and the University of Toronto’s published procedure shows how the rungs fit together. Wherever feasible, it recommends buying from an approved supplier or an existing vendor-of-record arrangement, and it points buyers to uSOURCE, its online marketplace. When those cannot supply the item, “the purchase value determines the method”. Under $25,000 the options are a purchasing card (PCard), a purchase order or a certified invoice from the supplier. From $25,000 to $74,999 a purchase order needs at least two written quotes, from $75,000 to $121,199 at least three, and from $121,200 the university requires “a competitive, publicly posted procurement process.”
The card is the quickest route, and its limits are worth knowing before an order. U of T’s card has a $10,000 single-transaction limit before tax, purchases “must not be split to circumvent” it, and some categories are blocked outright: the card “will be declined at point of initiation (based on the supplier’s Merchant Category Code)” for a list that includes hazardous material and laboratory and research animals. In practice, a card can be refused because of how a merchant is coded, before anyone has looked at what is being bought.
Restricted materials take the slow route by design. At Queen’s University, radioactive materials must be reviewed by Environmental Health & Safety and “may only” be bought through a purchase order, and using a card for them “is strictly forbidden”; controlled goods and substances are also barred from cards. Some campuses add a central store for common chemicals: at Waterloo, researchers can order directly from a manufacturer or from Chem Stores, where “All purchases require a work order and activity number.”
Need a document for your purchasing file? Ask us before you order.
Contact us| Route | What it is for | What it needs | What it leaves in the file |
|---|---|---|---|
| Purchasing card | Low-value buying from merchants the card accepts (U of T: up to $10,000 per transaction, before tax) | A cardholder, a permitted merchant category, an eligible item | Receipt, packing slip, card statement, monthly reconciliation |
| Requisition and purchase order | Higher-value or restricted purchases (U of T: with written quotes from $25,000; Queen’s: radioactive materials) | A supplier set up in the finance system; quotes above set thresholds | Requisition, purchase order, quotes, invoice, receiving record |
| Central stores | Common chemicals and supplies stocked on campus (Waterloo Chem Stores) | An internal work order and activity number | Internal charge and order record |
Outside the card route, U of T needs a supplier in its financial system before it can pay it. Setting up a vendor account there means attaching “a supplier quote, invoice, or contract/written agreement”, supplying a GST/HST number “If the supplier operates in Canada”, and confirming that number in the CRA’s online registry. Standard processing is five business days, so set up a new supplier before the experiment needs the reagent, not after.
What Tri-agency grant rules ask for
When the money comes from NSERC, CIHR or SSHRC, the Tri-agency Guide on Financial Administration sets the frame; its revised version took effect on April 1, 2026. It does not list eligible items. Its directive on goods and services sets principles instead: what you buy must be a direct cost of the research the funds were awarded for, “be effective and economical” and “not result in personal gain for members of the grant team”, and it must be bought under your institution’s policies.
Responsibilities are split. The grant recipient authorizes purchases “in a manner that can be substantiated” and makes sure they are documented as the institution prescribes. The institution confirms eligibility and must obtain a justification from the recipient when “the grant-related purpose for acquiring a good or service is unclear”. For a reagent with an unfamiliar name, a sentence on the requisition about the experiment it serves can save a round of questions. Since April 2026 the guide also says institutions and grant recipients “are strongly encouraged to take reasonable steps to prioritize Canadian suppliers, services, material and content wherever possible.” The University of Guelph’s research office describes the change as a stronger emphasis on Canadian options, with flexibility where Canadian suppliers cannot meet research needs.
Whether a particular peptide is an eligible expense on a particular grant is decided by your research finance office under the grant’s terms, and how the Canadian-supplier guidance applies to a purchase is your institution’s call. No supplier can answer either question for you, and this article does not try.
What a receipt or invoice should show
Tax rules shape what a finance office looks for on an invoice. The CRA’s guide for GST/HST registrants (RC4022, revision 25) sets out what a supplier has to show when a customer asks for an invoice or receipt to claim input tax credits, and the list grows with the size of the sale. The table shows the main items; the thresholds come from the Input Tax Credit Information (GST/HST) Regulations.
| Information on the invoice | Under $100 | $100 to $499.99 | $500 or more |
|---|---|---|---|
| Supplier’s business or trading name | Yes | Yes | Yes |
| Invoice date (or date the tax was paid or payable) | Yes | Yes | Yes |
| Total amount paid or payable | Yes | Yes | Yes |
| GST/HST charged, or a statement that it is included | — | Yes | Yes |
| Supplier’s GST/HST registration number | — | Yes | Yes |
| Buyer’s name or authorized representative | — | — | Yes |
| Brief description and terms of payment | — | — | Yes |
How your institution recovers tax is for its finance office to say; this is context, not tax advice. Two practical points: from $100, the supplier’s registration number matters, and the CRA’s GST/HST Registry lets you “confirm that the business charging you GST/HST is registered”; from $500, the buyer’s name and a description become required, so agree beforehand on the name your finance office expects.
The documentation pack to request
The invoice covers the money. The material needs its own paper, and three documents do most of the work:
- Specification. What the product is supposed to be: sequence, form and quantity.
- Certificate of analysis for your lot. What that lot measured. It is only relevant if its lot number matches your vial; for our products, the certificates we publish are on our Lab Testing page.
- Safety data sheet, where one applies. Under WHMIS, the Canadian Centre for Occupational Health and Safety explains, SDSs “must be provided by the suppliers of the hazardous products at the time of sale” and “must be readily available to the workers who are exposed to the hazardous product”. Whether a given peptide is a hazardous product depends on its classification, so do not assume either way.
Our companion article on the documents to request explains what each one covers and what none of them can prove.
Receiving, inventory and records
Receiving closes the loop between the order and the bench. A workable routine:
- Check the delivery against the order and the packing slip, and note the date and the condition of the package.
- Copy the supplier’s lot number exactly as printed and add a receiving number of your own; our guide on how to record lot numbers on receipt explains why both matter.
- File the certificate for that lot, and the SDS where one applies, where everyone in the lab can find them.
- Enter the item in your chemical inventory if your institution keeps one. At Waterloo, “All labs with chemicals are required to have an inventory”, and supervisors must “Ensure laboratory inventory is up to date and current SDSs are available.”
- Keep the receipt or invoice, packing slip and approvals with the purchase record. U of T asks cardholders to retain “receipts, packing slips, etc.” for audit trail purposes.
If a study needs one lot across several orders, plan that before the first order; our guide to buying research peptides in bulk covers lot planning.
Questions to ask before a first institutional order
A short message before ordering costs less than a declined card or a returned invoice. Five questions cover most of it:
- Can you be set up as a vendor in our finance system, and what details can you provide for it?
- Will your invoice or receipt show what our finance office needs at this order size?
- Which payment methods do you accept?
- Can you confirm the lot number before shipping, and point us to the certificate for that lot?
- Is a specification sheet or an SDS available for this product?
We cannot tell you how your institution’s rules apply, but we can answer these for our own products. Put the same questions to us that you would put to any supplier, and contact us with the specifics before you order.
What’s established and what isn’t
Established, and citable
- Grant-funded goods must be acquired under the administering institution’s policies and processes (Tri-agency guide, 2026).
- Supporting documentation must be kept for at least seven years (Tri-agency guide, 2026).
- The guide strongly encourages prioritizing Canadian suppliers, services, material and content where possible (Tri-agency guide, 2026).
- Invoice information requirements step up at $100 and at $500 (CRA RC4022; ITC Information Regulations, s. 3).
- The CRA’s GST/HST Registry confirms whether a business charging GST/HST is registered (CRA).
- Suppliers of hazardous products must provide an SDS at the time of sale (CCOHS).
- U of T’s card prohibits hazardous material and caps single transactions at $10,000 before tax (U of T).
Open, or decided case by case
- Whether a given peptide is an eligible expense on a given grant: your institution decides, under the grant’s terms.
- Whether a given peptide is a hazardous product under WHMIS: it depends on its classification.
- Your institution’s own thresholds, card rules and approved suppliers, which may differ from the examples here.
- Whether a particular supplier offers quotes, accepts purchase orders or issues invoices in the format you need: ask.
- Anything about the identity or purity of the material, which only lot documentation addresses.
Buying research peptides for a university lab from a Canadian supplier
Pure Peptides Canada is a Canadian-owned online supplier of research peptides and laboratory reagents, established in 2023 and based in Toronto. Prices are in Canadian dollars, and orders ship tracked from inside Canada to every province and territory; our page on shipping within Canada has the details. We accept credit or debit card, Interac e-Transfer or crypto.
Two questions are worth settling first. Whether your card program allows a particular purchase is one for your card coordinator. Whether we can provide a quote, work with a purchase order or issue an invoice in a particular format is one for us, worth asking before you order. Our products are sold for in-vitro laboratory research only, not for human or veterinary use.
Research peptides for institutional labs
Prices are in Canadian dollars, and Janoshik test reports for these products are listed on our Lab Testing page; ask us before you order if your purchasing office needs other documents. IGF-1 LR3, for example, was designed for cell-culture work.
IGF-1 LR383-residue IGF-1 analogueView product
GHK-CuCopper tripeptideView product
BPC-15715-amino-acid research peptideView product
LL-37Human cathelicidin peptideView productResearch use only. Pure Peptides Canada products are laboratory reagents for in-vitro research, not for human or veterinary use. This article explains institutional purchasing paperwork for education; it is not medical, dietary or dosing guidance, and it is not tax, legal or regulatory advice.
Frequently asked questions
Can I buy research peptides with a university purchasing card?
It depends on your institution’s card rules. At the University of Toronto, for example, the card is for low-value goods with a $10,000 limit per transaction before tax, and hazardous material is a prohibited category, with declines triggered by the supplier’s merchant category code. Ask your card coordinator, and the supplier, before you order.
Are research peptides an eligible expense on Tri-Agency grants?
The Tri-agency Guide on Financial Administration does not list eligible items. It requires goods to be a direct cost of the funded research, effective and economical, and bought under your institution’s policies, with supporting documentation kept for at least seven years. Whether a particular purchase qualifies is decided by your institution’s research finance office, not by a supplier.
What should an invoice for lab supplies show in Canada?
For a buyer claiming GST/HST input tax credits, CRA’s guide for registrants lists the supplier’s name, the date and the total for any amount. From $100 it adds the supplier’s GST/HST registration number and the tax charged or included, and from $500 the buyer’s name, the terms of payment and a description of what was bought. Your finance office may ask for more.
What documents should I request for an institutional order?
Ask for the product specification, the certificate of analysis for the lot you will receive, and a safety data sheet where the product is classified as hazardous. Keep them with the invoice or receipt, the packing slip and any approvals, so both the purchase and the material can be traced later.
How should a lab record research peptides on receipt?
Record the supplier’s lot number exactly as printed, a receiving number of your own, the date and condition on arrival, and the storage location. File the certificate for that lot, and any SDS, where the lab can find them, and add the item to your chemical inventory if your institution keeps one.
Do I need a purchase order to buy from an online supplier?
Not always. At the University of Toronto, a purchase of up to $10,000 before tax can go on a purchasing card if the item and merchant are permitted, while outside its approved suppliers a purchase from $25,000 needs a purchase order with at least two written quotes. Some materials, such as radioactive materials at Queen’s University, can only be bought by purchase order. Your procurement office sets the rule.
Ordering for a lab?
Card, Interac e-Transfer or crypto, priced in CAD and shipped tracked from inside Canada. Send purchasing or documentation questions before you order.
References
- Natural Sciences and Engineering Research Council of Canada, Social Sciences and Humanities Research Council and Canadian Institutes of Health Research. Tri-agency Guide on Financial Administration, effective April 1, 2026: Goods and services expenditures. NSERC
- University of Toronto Procurement Services. How to Purchase Goods and Services (page modified 2026-03-24). University of Toronto
- University of Toronto Procurement Services. Administrative Regulations: Purchasing Card Program. University of Toronto
- University of Toronto Procurement Services. How to setup a new vendor account in FIS. Last updated December 4, 2023. University of Toronto
- Queen’s University Strategic Procurement Services. Radioactive & Hazardous Materials (buying guide). Queen’s University
- University of Waterloo Chem Stores. Purchasing procedures. University of Waterloo
- University of Waterloo Safety Office. Chemical Inventory System (RSS). University of Waterloo
- Canada Revenue Agency. RC4022, General Information for GST/HST Registrants, revision 25 (page modified 2026-01-07). Government of Canada
- Government of Canada. Input Tax Credit Information (GST/HST) Regulations (SOR/91-45), section 3. Current to 2026-09-30. Justice Laws Website
- Canada Revenue Agency. Confirming a GST/HST account number (GST/HST Registry). Page modified 2025-04-11. Government of Canada
- Canadian Centre for Occupational Health and Safety. WHMIS – Safety Data Sheet (SDS). Page modified 2026-10-20. CCOHS
- University of Guelph. Research Alerts: Tri-agency Guide on Financial Administration (TAGFA) updates go live April 1, 2026. University of Guelph
For laboratory research use only. Not for human or veterinary use. This article summarizes published institutional, funder and government guidance for educational purposes and is not medical, tax, legal or regulatory advice.