Active ingredientTemazepamCat. No. P-T042-001CAS 846-50-4
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Pharmacopoeial impurity · Temazepam family
Pharmaceutical analytical standardTemazepam EP Impurity C
Synonyms: Temazepam acetate, Temazepam impurity c (ep impurity), Temazepam impurity, o-acetyl temazepam-(usp impurity)
- Cat. No.
- P-T042-003
- CAS
- 18818-64-9
- Alternative CAS
- N/A
- Formula
- C18H15ClN2O3
- Molecular weight
- 342.78 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Temazepam
An intermediate-acting benzodiazepine used for the short-term treatment of insomnia: its usefulness as a sleeping medicine was recognised in 1969 and it came onto the market in the early 1970s.
Did you know?It is one of the active metabolites of diazepam: the body makes it from that molecule and, to a small extent, converts it in turn into oxazepam, another benzodiazepine.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Temazepam family
Active ingredientTemazepamCat. No. P-T042-001CAS 846-50-4
Pharmacopoeial impurityTemazepam EP Impurity DCat. No. P-T042-004CAS 17191-70-7
Isotopically labelledTemazepam-d5Cat. No. P-T042-005CAS 136765-51-0
NitrosamineN-Nitroso Temazepam EP Impurity ACat. No. P-T042-006CAS 51145-18-7
ImpurityTemazepam Impurity 1Cat. No. P-T042-007CAS 52395-03-6Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.