Ensitrelvir impurities and related standards

8 reference standards related to Ensitrelvir held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 8 of 8; 6 entries carry a structure drawing.

On this page

8 reference standards

All entries — structure, identifiers and pack sizes

Ensitrelvir Impurity 1

CAS 1890002-53-5RS-E169001

Formula C8H8BrN3 MW 226.07
COA per lot
Ensitrelvir Impurity 40

CAS 1893125-36-4RS-E169004

Formula C8H8ClN3 MW 181.62
COA per lot
Ensitrelvir Impurity 42

CAS 1360105-53-8RS-E169002

Formula C9H15N3O2S MW 229.3
COA per lot
Ensitrelvir Impurity 43

CAS 157911-56-3RS-E169003

Formula C7H4BrF3 MW 225.01
COA per lot
Ensitrelvir Impurity 44

CAS 2771355-75-8RS-E169006

Formula C16H18F3N3O2S MW 373.39
COA per lot
Ensitrelvir Impurity 46

CAS 2771355-73-6RS-E169005

Formula C16H15F3N6O2S MW 412.39
COA per lot
Ensitrelvir Impurity 52

CAS 3024654-20-1RS-E169008

Formula C10H10ClN3O MW 223.66
COA per lot
Ensitrelvir Impurity 53

CAS 2882830-19-3RS-E169007

Formula C18H12ClF3N6O2 MW 436.78
COA per lot

8 reference standards

Frequently asked

How many Ensitrelvir-related reference standards do you hold?

8 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 8 of them and 6 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply an Ensitrelvir impurity that is not listed here?

Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.

What documentation is supplied with Ensitrelvir impurities?

Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.

Do you publish prices or a lead time for Ensitrelvir impurities?

No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.