7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate

Also known as: Oxazepam Related Compound B, Oxazepam EP Impurity B, Oxazepam Impurity B, 3-Acetoxy-7-chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one, 7-Chloro-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl acetate, (±)-Oxazepam 3-acetate, (±)-Oxazepam acetate, Oxazepam acetate, 3-acetyloxy-7-chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one, acetic acid (7-chloro-2-keto-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl) ester

7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate (CAS 1824-74-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C17H13ClN2O3 and a molecular weight of 328.75000 g/mol. Key properties include a boiling point of 497.8ºC at 760mmHg, a density of 1.37g/cm3 and a flash point of 254.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1824-74-4
Jingsj CID: J-887160-1
Molecular Formula: C₁₇H₁₃ClN₂O₃
Molecular Weight: 328.75000 g/mol
Category: Ketones
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	497.8ºC at 760mmHg
Density	1.37g/cm3
Flash Point	254.9ºC
Exact Mass	328.06100
PSA	71.25000
LogP	2.53940
Vapor Pressure	4.79E-10mmHg at 25°C
Refractive Index	1.644

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate?

The CAS number of 7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate is 1824-74-4.

What are the molecular formula and molecular weight of 7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate?

7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate has molecular formula C17H13ClN2O3 and molecular weight 328.75000 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "7-chloro-1,3-dihydro-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate (CAS 1824-74-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-887160-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.