Writing accurate product descriptions for research compounds

An accurate description of a research compound tells a qualified buyer exactly what they are getting: what the material is, what form it comes in, how much is in each unit, how pure it is and how that was measured, how to store it, and what documents come with it. It leaves out what the material might do. That is not a property of the material in the container, and it is the content most likely to make a listing read as an offer to consumers.

This guide gives a structure you can apply to every listing, a template with placeholders, and the wording habits that quietly change what a description says.

Start from facts you can document

Every objective statement in a description is a claim. The FTC's policy statement on advertising substantiation says advertisers need a reasonable basis for objective claims before they make them, and that a claim such as "tests prove" needs at least the level of support it advertises. A purity figure, a named test method or a statement that each lot is tested by an outside laboratory are all claims of that kind. Each should match a document you hold, for the lot you are actually shipping.

Stripe's website checklist makes a related point from the payments side. It encourages detailed descriptions of what you sell, because setting the right expectations up front helps prevent disputes, and it says Stripe may contact a business if a review finds it unclear what the business is selling.

Before writing, gather the current certificate of analysis, the label artwork, your internal specification for the product and any supplier documents. Write from those, not from memory or from another seller's page.

A structure that works

Identity

Give the name a chemist would recognize, plus your own catalog number. Add the identifiers that apply: CAS number where one exists, molecular formula, molecular weight, and sequence or structure where relevant. Do not use nicknames, abbreviations borrowed from consumer forums, or invented brand names. If a material is commonly known by several names, list the formal one first.

Form and quantity

State the physical form as supplied, for example powder, crystalline solid or solution, and the solvent or buffer if it is a solution. State the quantity per unit and the container type. Use the units printed on the label so the page and the vial agree.

Purity and testing

Give the purity figure and the method, for example the chromatography or mass spectrometry technique used. Say whether testing was done in-house or by a named outside laboratory, and that the figure applies to a specific lot. Avoid ranges or rounded figures that the certificate does not show. If you do not test every lot, do not imply that you do.

Storage and handling

Describe storage conditions for the material as shipped and as received: temperature, protection from light or moisture, and any shipping conditions such as cold packs. Keep this to the material itself. Storage instructions are not the place for instructions on preparing it for any use.

Documentation

List what comes with the product or is available on request: certificate of analysis by lot, specification sheet, and any other documents you actually provide. FDA's guidance on good manufacturing practice for active pharmaceutical ingredients is one published reference for what a certificate typically records, such as the batch number, the tests performed with their acceptance limits and numerical results, and the date. More on that in what a certificate of analysis should show.

Intended use and buyer eligibility

Close the description with a plain statement of intended use and who may buy. Keep it consistent with your label and your terms of sale, word for word where you can.

A template with placeholders

The template below uses brackets for the values you fill in from your documents. It deliberately has no line about effects, uses or outcomes.

• Product: [formal name], catalog no. [number]
• Identifiers: CAS [number, if any]; formula [formula]; molecular weight [value]
• Form: [physical form], [quantity] per [container type]
• Purity: [figure] by [method], lot [number], tested by [laboratory]
• Storage: [conditions as shipped and on receipt]
• Documents: certificate of analysis for each lot, available [on the page / on request]
• Intended use: For laboratory research use only. Not for human or animal use.
• Eligibility: Sold only to qualified business and research buyers. See our terms of sale.

Wording that changes the meaning

Small word choices can turn a factual listing into a claim. Watch for these patterns:

• Outcome words. Any word describing a change in a body, a feeling or an appearance is an effect claim, even inside a longer technical sentence.
• Borrowed medical language. Terms that compare the material to a medicine, or describe it as an alternative to one, suggest a use for people.
• Quality words that imply human use or that you cannot document. Terms such as "pharmaceutical grade" or "clinical quality" suggest use in people and do not belong on a research listing. Terms such as "lab verified" need a document behind them for the lot you ship.
• "Researchers report" or "studies show." Summarizing outside research about effects is still a statement about effects, and it puts the claim on your page. Link to identity data, not to outcome research.
• Second-person instructions. Sentences that tell the reader what "you" should do with the material, beyond storing it, read as directions for use.

Intent is judged from more than the label. FDA's regulation on the meaning of intended uses for drugs, 21 CFR 201.128, says objective intent can be shown by labeling claims, advertising matter and oral or written statements. Your descriptions are written statements. Whether any rule applies to your products is a question to put to a qualified lawyer, but descriptions that stick to the material's properties avoid making statements you then have to explain. The full list of content to take out is in claims to remove from a research supply store.

Keeping descriptions accurate over time

Descriptions go stale when lots change. A few habits keep them current:

1. Tie the purity figure and certificate link on each page to a lot, and update both when the lot you ship changes.
2. Keep a short change log for each listing: what changed, when and why.
3. Have one person write and another check against the documents before a new listing goes live.
4. Review descriptions after any supplier, label or specification change, not only on a calendar schedule.
5. Check the other places descriptions appear, such as marketplace feeds, PDFs and search snippets.

Where this fits

Good descriptions are one control among several. They work alongside a research-use-only product page checklist, buyer checks and consistent policies. They do not decide how a payment processor will view your business; Stripe and the card networks make their own decisions. Claddr's weekly monitoring checks product pages against your compliance profile and points to the exact line with a suggested fix, so drift in a description is easier to spot. You decide what to change. See how Claddr works.