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Pharmaceutical Intermediates

Organic and heterocyclic building blocks, key starting materials and API process intermediates from milligram research packs to multi-kilogram supply.
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(-)-Acorenone
CAS
5956-05-8
Formula
C15H24O
MW
220.35 g/mol
ZX-041630
(-)-Altenuene
CAS
889101-41-1
Formula
C15H16O6
MW
292.28 g/mol
ZX-043450
(-)-Linalool
CAS
126-91-0
Formula
C10H18O
MW
154.25 g/mol
ZX-043128

Pharmaceutical Intermediates covers the molecules chemists use to assemble drug candidates and generic APIs. One side of the division holds organic building blocks sorted by functional group, such as aldehydes, amines, acid chlorides, boronic acids and fluorinated aromatics. The other side holds heterocycles, from pyridines and pyrimidines to indoles, piperazines and triazoles, along with named intermediates used in the commercial routes of established drugs.

Medicinal chemistry teams usually buy small packs for scouting and want fast delivery. Process groups care more about impurity profiles, isomer content and whether the supplier can scale without changing the route. We list purity and key identifiers for each item and can share route outlines under confidentiality for intermediates bought in larger volumes.

Custom synthesis is available for compounds that are not in stock, and we can work to your specification for assay, chiral purity and residual solvents. Shipments include a COA and SDS. Search by name, CAS number, formula or ZX catalogue number to find a compound quickly.

Pharmaceutical Intermediates: questions buyers ask

Can you scale an intermediate from grams to kilograms without changing the route?
For many listed intermediates the gram packs and the kilogram supply come from the same manufacturing route, which keeps the impurity profile consistent. Where scale-up needs a different route, we tell you before you commit and can provide comparison samples so your team can check the new material against the old.
How do you control isomer and enantiomer content?
Positional isomers are controlled by HPLC or GC methods suited to the compound, and chiral intermediates are tested by chiral HPLC to report enantiomeric excess. The limits that apply to your lot appear on the COA. If your process needs tighter limits, state them on the enquiry and we will confirm what can be met.
Can I receive analytical data before placing a large order?
Yes. For development and commercial quantities we can share a recent lot COA, chromatograms and, where helpful, NMR spectra before you order. Pre-shipment samples are also possible so your laboratory can run its own release tests. Ask for these through the quote panel when you send your requirement.

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

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