Temazepam impurities and related standards

Temazepam is held here as a working collection of 26 reference materials across 9 CAS numbers. 9 of the entries are impurity-type materials of the parent, 4 carry a deuterium label. 9 entries carry a verified structure drawing, a coverage of 35%; the rest are listed without a structure rather than with an unverified one. 9 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 17 remain tier C and are kept for search coverage. Relative response factors are what decide whether a percentage on a chromatogram means anything. Impurities that lack a chromophore, or whose ultraviolet maximum sits away from the detection wavelength used for the parent, under-respond by a factor that has to be established with a solution of the standard itself rather than assumed. Anyone comparing two suppliers on this parent should ask the same three questions of each: which letters are held, what the content basis is, and whether the structure on the page was verified against the name rather than copied from it.

Sources: DailyMed (US NLM) - TEMAZEPAM CAPSULE [BRYANT RANCH PREPACK].

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

In this group: 4 impurity reference standards · 3 stable isotope labelled standards · 2 fine chemicals. CAS numbers are listed for 9 of 9; 9 entries carry a structure drawing.

On this page

9 reference standards

All entries — structure, identifiers and pack sizes

Temazepam EP impurity D

CAS 17191-70-7C17H15ClN2O2

MW 314.8

IN STOCKRS-I516253
Temazepam EP impurity F

CAS 3294-96-0C16H13ClN2O2

MW 300.7

IN STOCKRS-I516132
Temazepam EP Impurity G

CAS 93329-92-1C17H15ClN2O2

MW 314.77

IN STOCKRS-T290001
(3RS)-7-chloro-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-

CAS 1824-74-4C17H13ClN2O3

MW 328.7

IN STOCKRS-I009207
Temazepam-* psy (T0040000)

CAS 846-50-4C16H13ClN2O2

MW 300.74

IN STOCKRS-T290006
Temazepam-13C,d3

CAS 1189871-79-1C1513CH10D3ClN2O2

MW 304.75

IN STOCKRS-T290002
Temazepam-beta-D-glucuronide, racemic mixture

CAS 3703-53-5C22H21ClN2O8

MW 476.9

BACK ORDERRS-T290005
Temazepam-d5

CAS 136765-51-0C16H8D5ClN2O2

MW 305.77

CUSTOM SYNTHESISRS-T290003
Temazepam-d8

CAS 2747917-64-0C16H5D8ClN2O2

MW 308.8

IN STOCKRS-T290004

9 reference standards

Frequently asked

How many Temazepam-related reference standards do you hold?

9 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 9 of them and 9 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Temazepam 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 Temazepam 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 Temazepam 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.