A grant application is read in two registers. The case for support is read for scientific judgement; the materials appendix is read for evidence that the work described can actually be done, documented and audited. Supplier detail belongs emphatically to the second register. Placing a catalogue reference, pack size or purity figure in the narrative invites reviewers to see procurement logic intruding on the science — and some funders treat it as promotional content. Moved into the appendix, the same detail reads as diligence. The skill is knowing exactly where the line sits, and writing the justification so that it survives both peer review and a later audit.
Why Catalogue Citations Belong in the Appendix, Not the Narrative
The distinction is worth writing into your internal process rather than leaving to whoever drafts the application. A supplier justification memorandum is a working document: it records why a particular catalogue line was chosen over alternatives, what documentation accompanies it, how it will be stored in the laboratory, and how the batch will be traced if a reviewer asks. The appendix entry is the public extract of that memorandum — shorter, factual, and stripped of anything that could be read as a sales claim. Keeping the two as separate drafts stops the enthusiasm of the procurement note from leaking into a document that may be published alongside an award.
Funder conventions vary, and they change. Some ask for a justification of resources as a discrete attachment; others expect materials evidence inside the appendix; a few cap the appendix at one or two pages. Read the current call guidance before deciding where a citation sits, and note in your project file which version of the guidance you worked from. Where the appendix may be published, assume a reader with no laboratory background will see it: keep sentences plain, define abbreviations once, and avoid any wording that could be mistaken for a therapeutic, clinical or performance claim. Materials are supplied for controlled laboratory and analytical research only and are not for human or veterinary use; that sentence belongs in the appendix and should not be softened for readability.
Finally, separate the citation from the rationale. The rationale — why this in-vitro assay needs a reagent at this specification, in this quantity — is scientific and belongs, briefly, in the narrative. The citation — supplier, product, pack size, vial label reference, storage condition — belongs in the appendix. Reviewers checking reproducibility will turn to the appendix; reviewers assessing novelty should never have to trip over a catalogue code mid-argument. A clean split also protects you at revision stage, when the narrative is rewritten several times but the materials list barely changes.
Constructing the Justification Note, Item by Item
The minimum data set for each catalogue line
For every line, record the trading name as it currently appears — Research Sciences — followed by the product name and pack size exactly as listed, the quantity required for the planned assay series, the storage condition stated on the listing, and the vial label reference that links to the batch certificate. Current catalogue examples include BPC-157 10mg, TB-500 5mg, Ipamorelin 5mg, CJC-1295 (No DAC) 5mg, GHK-Cu 50mg, Tesamorelin 5mg and MT-1 10mg, alongside a 10ml Mixing Water line and storage containers for laboratory preparation. Pack size is not a trivial detail: it determines how many independent vials the study consumes, how the budget lines up, and whether a mid-project restock will be required.
Describing documentation without over-claiming
The shop’s published wording includes ≥99% Verified Purity, a headline of UK Research Materials Over 99.1% Purity, and CoAs Janoshik Analytical Reports. Treat those as the supplier’s current statements, note the month and year you consulted the site, and state plainly in the appendix that the figure that governs your study is the one on the batch certificate of analysis, to be reconfirmed at the point of order. Then describe what the certificate actually covers — HPLC purity and identity, with heavy-metal and endotoxin screening described by the supplier as part of its testing framework — rather than converting a homepage line into a certification. Where the appendix needs a single source pointer rather than a product-by-product list, a short reference to the supplier’s Peptide uk catalogue is sufficient; the detail that carries weight is the product code, the batch reference and the certificate on file.
Two catalogue conventions deserve a line in your working note. Restocked products may carry the same Internal Test Reference (ITR) as earlier stock; an ITR links to associated sample testing reports but does not confirm that separate deliveries come from the same production lot or have been separately tested. Vial cap colour may also vary and is not an indicator of identity, analytical quality or manufacturing origin. Recording both points protects you if a reviewer or auditor compares documents across a project’s lifetime.
Compliance Language, Storage Records and the Audit Trail
Every appendix entry should carry the research-use-only statement in the supplier’s own framing: products are labelled “For Research Use Only – Not for Human Consumption”, a position the shop describes as in line with MHRA guidance. Present that as the supplier’s stated position rather than as legal advice, and pair it with your institution’s own responsibilities — lawful use, safe handling, storage and disposal, and compliance with COSHH and laboratory safety standards. Quoting the COSHH assessment reference and the local rules for handling lyophilised powders turns a generic disclaimer into an auditable control, which is exactly what a materials appendix is for. Materials remain not for human or veterinary use.
Handling notes belong in the appendix as well. Allow vials to reach room temperature before opening, work in a clean environment, remove only the amount required for the experiment, store lyophilised material at −20°C or below sealed with desiccant and protected from moisture, heat and light, avoid repeated freeze–thaw cycles, and keep reconstituted material at 2–8°C for short-term laboratory use. Describe reconstitution solely as a dilution step in an in-vitro workflow — diluent volume and target assay concentration, nothing further — and note that the supplier’s calculator is a laboratory aid, not a basis for dosing. A short worked sentence helps: “Lyophilised material will be reconstituted with the supplied diluent to the concentration required for the in-vitro assay and used within the short-term storage window.”
Lead time and purchasing route complete the picture. The site states that orders are dispatched the next working day via Royal Mail Tracked 24, usually delivering the following working day as a carrier estimate; the homepage’s “24hr UK Delivery” line is marketing copy, so a grant timeline should use a conservative figure and label it an estimate. No returns are accepted once dispatched, with refunds only for damage, incorrect supply or quality issues under the Refunds & Returns Policy. The shop also states that it does not accept card payments and uses Pay-By-Bank or Open Banking through providers such as Wallid, regulated by the FCA — the sentence to quote if your finance office asks why a supplier sits outside the usual purchasing route.
Name continuity matters more than it appears. The FAQs describe Research Sciences as the parent company of Imperial Peptides UK, which continues to operate as a brand, and some pages and older posts still use Imperial Sciences UK or Imperial Peptides UK. If a prior application or a colleague’s appendix cites the older name, add a one-line explanatory note so an auditor does not read it as a supplier substitution. Record the month and year you checked the catalogue, and file the saved certificate, the order confirmation and the appendix together as one document set.
From Amman to Montreal, Omar is an aerospace engineer turned culinary storyteller. Expect lucid explainers on hypersonic jets alongside deep dives into Levantine street food. He restores vintage fountain pens, cycles year-round in sub-zero weather, and maintains a spreadsheet of every spice blend he’s ever tasted.