Biotin impurities and related standards

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

CAS numbers are listed for 11 of 11; 11 entries carry a structure drawing.

Biotin — related standards
Compound	CAS No.	Catalogue No.	Formula	MW
Biotin EP Impurity F	101469-35-6	RS-B005001	C29H36N2O5S	524.67
Biotin EP Impurity A	1163708-46-0	RS-B005002	C18H28N4O4S2	428.57
Biotin Impurity 1	171232-73-8	RS-B005003	C19H18N2O2S	338.42
Biotin Impurity 2	21788-37-4	RS-B005004	C10H16N2O3S	244.31
Biotin Impurity 18	23015-53-4	RS-B005005	C10H16N2O4S	260.31
Biotin Impurity 12	26339-40-2	RS-B005006	C19H18N2O5	354.36
Biotin Impurity 19	33607-60-2	RS-B005007	C24H28N2O3S	424.56
Biotin EP Impurity G Bromide	33719-11-8	RS-B005008	C22H25N2OS.Br	445.4
Biotin EP Impurity D	415725-35-8	RS-B005009	C11H18N2O3S	258.34
Biotin EP Impurity B	57671-79-1	RS-B005010	C11H16N2O5S	288.32
Biotin Impurity 20	87573-52-2	RS-B005011	C12H20N2O3S	272.36

Structures

Biotin EP Impurity F

CAS 101469-35-6RS-B005001
COA per lot
Biotin EP Impurity A

CAS 1163708-46-0RS-B005002
COA per lot
Biotin Impurity 1

CAS 171232-73-8RS-B005003
COA per lot
Biotin Impurity 2

CAS 21788-37-4RS-B005004
COA per lot
Biotin Impurity 18

CAS 23015-53-4RS-B005005
COA per lot
Biotin Impurity 12

CAS 26339-40-2RS-B005006
COA per lot
Biotin Impurity 19

CAS 33607-60-2RS-B005007
COA per lot
Biotin EP Impurity G Bromide

CAS 33719-11-8RS-B005008
COA per lot

Frequently asked

How many Biotin-related reference standards do you hold?

11 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 11 of them and 11 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Biotin 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 Biotin 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 Biotin 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.