About SynthonLab

SynthonLab is a catalogue and a synthesis shop in one place. The catalogue is the part of the
inventory that is already characterised, packed and documented: 283 building blocks, each on its own
page with its CAS number, molecular formula, molecular weight and standard packing. The synthesis shop
is everything else – compounds at a quantity the catalogue does not hold, and compounds that are not
commercially available at the purity a route needs.

Why the catalogue is small

A building block only earns a page when three things are true: the identity is confirmed, the
packing is fixed, and the material can be supplied more than once. Compounds that pass two of those
three tests are not listed, because an entry that cannot be repeated is a sample, not a catalogue item.
That is why the index runs to 283 entries rather than to several thousand.

Who the entries are for

Process chemists and sourcing groups in CROs, pharmaceutical and agrochemical R&D, and fine
chemical trading. The common thread is not the industry but the question: can I get this compound,
at this specification, in this quantity, with paperwork that my QA group will accept? Every page
on this site is written to answer that question without a phone call.

How the work is split

Catalogue items are quoted from stock or made to order, whichever the lot status requires. Custom
work starts with a route review, moves to a feasibility lot, and only then to scale. Nothing is scaled
before the feasibility lot has been analysed against the specification it will be judged by.

What we do not do

No compounds for human or veterinary consumption. No pesticides, cosmetics, food additives or
household products. No work that would put the receiving laboratory outside its own permits. When a
request falls into one of those groups the answer is no, and the reason is given rather than implied.

Talking to us

Every enquiry reaches a chemist. Write to [email protected]
with a CAS number, a quantity and a destination, or use the form on the contact page.
Catalogue items are answered within one business day.