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New standards, technical notes and updates — by email

Leave your address and we will send the things a laboratory actually uses: new catalogue items with their CAS numbers, short technical notes, and the pharmacopoeia or regulatory changes that affect impurity testing. No account, no password, and one-click unsubscribe in every email.

No accountan email address is all we ask for

Infrequentwe write when there is something worth sending

Unsubscribeone click, in every email

What you will receive

Four things, all of them things we publish ourselves.

New catalogue itemsWhen we add compounds to the catalogue — new pharmacopoeial impurities, metabolites, nitrosamines and labelled analogues — you get the list with CAS numbers and pack sizes.

Technical notes and guidesShort, practical notes written for the bench: how a value is assigned, what a COA must contain, how to compare an EP impurity letter with a USP related-compound letter (they do not always match — we have the CAS-level evidence).

Pharmacopoeia and regulatory updatesChanges that affect impurity testing: nitrosamine control, elemental impurities, PFAS monitoring and pharmacopoeial monograph revisions — summarised, with the source linked.

Custom synthesis openingsCompounds we have recently synthesised to order and can now offer to other laboratories.

What we will not promise: prices. No price list is published on this site, and registration does not unlock one — every item is quoted per enquiry so that pack size, documentation and shipping can be confirmed together. If you need a quotation for a specific item, the enquiry form is the faster route.

Register

Fields marked * are required. We use your address only to send the updates above and to answer you; we do not sell or share it, and you can ask us to delete it at any time by replying to any email we send.

Prefer not to register?

That is fine — nothing on this site is behind a login. Prices are quoted per enquiry, the COA and SDS open without an account, and the full catalogue is browsable.

Where your address goes

It is stored with the registration record (address, and the name, organisation and country you choose to give) so that we can write to you and prove what you agreed to. Nothing is sold, nothing is passed to a third party, and replying “remove” to any email deletes it.

Looking for something specific instead?

If you already know the compound, skip the registration and send the CAS number or the catalogue number — the reply covers availability, lead time, documentation and shipping. For compounds that are not in any catalogue, see custom synthesis.