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Stable Isotope Labelled Standards (Deuterated, 13C, 15N)

Desmethyl Diazepam-d5

Reference StandardAvailable on request

Buy Desmethyl Diazepam-d5 (CAS 65891-80-7) from Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-045964.

Pack sizes
Desmethyl Diazepam-d5 chemical structure
CAS number65891-80-7
FormulaC15H11ClN2O
Molar mass275.74 g/mol
Physical formSolid
HS code38229090
InChIKeyAKPLHCDWDRPJGD-RALIUCGRSA-N
IUPAC name7-chloro-5-(2,3,4,5,6-pentadeuteriophenyl)-1,3-dihydro-1,4-benzodiazepin-2-one

About Desmethyl Diazepam-d5

Zemixal lists Desmethyl Diazepam-d5 for laboratories that identify, quantify or control Diazepam and its related substances. Identity at a glance (Reference Standard): CAS 65891-80-7, formula C15H11ClN2O and molar mass 275.74 g/mol. It is handled as a solid.

Use cases we see most often

  • LC-MS/MS internal standard
  • Bioanalytical quantitation
  • Pharmacokinetic studies

Safe handling

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Diazepam

See every impurity, metabolite and related compound we list for this API.

Diazepam standards

Typical uses

  • LC-MS/MS internal standard
  • Bioanalytical quantitation
  • Pharmacokinetic studies

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Deuterated and Stable-Isotope-Labelled Compounds

Specifications and identifiers

Specifications of Desmethyl Diazepam-d5
Product nameDesmethyl Diazepam-d5
Catalogue numberZX-045964
CAS number65891-80-7
IUPAC name7-chloro-5-(2,3,4,5,6-pentadeuteriophenyl)-1,3-dihydro-1,4-benzodiazepin-2-one
Molecular formulaC15H11ClN2O
Molar mass275.74 g/mol
Exact mass275.0874
GradeReference Standard
Physical formSolid
XLogP32.9
H-bond donors / acceptors1 / 2
Topological polar surface area41.5 Ų
HS code38229090
InChIKeyAKPLHCDWDRPJGD-RALIUCGRSA-N
SMILES[2H]C1=C(C(=C(C(=C1[2H])[2H])C2=NCC(=O)NC3=C2C=C(C=C3)Cl)[2H])[2H]
PubChem CID46781161
SynonymsNordazepam D5, Nordiazepam-d5, 2H-1,4-Benzodiazepin-2-one, 7-chloro-1,3-dihydro-5-(phenyl-d5)-, Nordazepam-d5, Nordiazepam-d5 (phenyl-d5), Desmethyldiazepam-D5 (Nordazepam-D5), N-Desmethyl Diazepam -D5, 7-Chloro-1,3-dihydro-5-(phenyl-d5)-2H-1,4-benzodiazepin-2-one, 7-Chloro-5-(~2~H_5_)phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Desmethyl Diazepam-d5
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Desmethyl Diazepam-d5

Which CAS number identifies Desmethyl Diazepam-d5?
Desmethyl Diazepam-d5 is registered under CAS 65891-80-7. You may also see it listed as Nordazepam D5, Nordiazepam-d5, 2H-1,4-Benzodiazepin-2-one, 7-chloro-1,3-dihydro-5-(phenyl-d5)-. Our catalogue number for this item is ZX-045964.
What are the formula and molar mass of Desmethyl Diazepam-d5?
For Desmethyl Diazepam-d5, its formula is C15H11ClN2O and its molar mass is 275.74 g/mol. The systematic (IUPAC) name is 7-chloro-5-(2,3,4,5,6-pentadeuteriophenyl)-1,3-dihydro-1,4-benzodiazepin-2-one. InChIKey AKPLHCDWDRPJGD-RALIUCGRSA-N lets you match it in any structure database.
How is Desmethyl Diazepam-d5 used in pharmaceutical QC?
Desmethyl Diazepam-d5 is a characterised reference material linked to Diazepam. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Desmethyl Diazepam-d5?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Desmethyl Diazepam-d5?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Desmethyl Diazepam-d5 to my country?
Yes. Because Desmethyl Diazepam-d5 is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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