Chlordiazepoxide-D5

[CAS Number 65891-81-8] Chlordiazepoxide-D5 is a stable-labeled internal standard used for the quanitfication of Chlordiazepoxide. Chlordiazepoxide, sold under brand names such as Librax and Librium, is a long-acting benzodiazepine containing anxiolytic, sedative, and hypnotic properties. It assists in treating anxiety, insomnia, and symptoms of drug and alcohol withdrawal. Chlordiazepoxide-D5 is available as reference material (bulk powder and/or solution) and as calibrated, Ready-to-Use, certified reference material (CRM). This product is designed for qualitative and quantitative protocols and can be used for forensic, toxicology, research, and other chemical/biochemical analytical applications.

Article no. CHL-1690-FB

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Chlordiazepoxide-D₅

Product reference number	CHL-1690-FB
Full chemical name	7-Chloro-2-methylamino-5-pentadeuterophenyl-3H-1,4-benzodiazepine-4-oxide
Formula	C₁₆H₉D₅ClN₃O
Molecular weight	304.79
CAS Number	65891-81-8
DEA No.	2744 CIV
Appearance	light yellow to yellow crystalline powder
IR	IR corresponds
NMR	corresponds to structure
MS	MH⁺ corresponds
UV max [nm] (mol, solvent)	242.0 ± 1.0 (24000 ± 2000, acetonitrile); 265.0 ± 1.0 (31000 ± 3000, acetonitrile)
Melting point [Celsius]	> 220
HPLC purity [%]	> 98.5
Water content [%]	< 1
Isotopic enrichement [%]	D₀/D₅ < 1