Lopirazepam
Also known as: 7-chloro-5-(2-chlorophenyl)-3-hydroxy-1,3-dihydropyrido[3,2-e][1,4]diazepin-2-one, 2H-Pyrido(3,2-e)-1,4-diazepin-2-one,1,3-dihydro-7-chloro-5-(2-chlorophenyl)-3-hydroxy, 2H-Pyrido(3,2-e)-1,4-diazepin-2-one,7-chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy, 3-Hydroxy-5-o-chlorophenyl-6-aza-7-chloro-1,2-dihydro-3H-1,4-benzodiazepinone, 7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-pyrido(3,2-e)-1,4-diazepin-2-one, Lopirazepam [INN], Lopirazepamum, Lopirazepamum [INN-Latin]
Lopirazepam (CAS 42863-81-0) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H9Cl2N3O2 and a molecular weight of 322.14600 g/mol. Key properties include a boiling point of 563.9ºC at 760mmHg, a density of 1.61g/cm3 and a flash point of 294.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42863-81-0
- Jingsj CID
- J-1956636-6
- Molecular Formula
- C14H9Cl2N3O2
- Molecular Weight
- 322.14600 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 563.9ºC at 760mmHg |
|---|---|
| Density | 1.61g/cm3 |
| Flash Point | 294.8ºC |
| Exact Mass | 321.00700 |
| PSA | 78.07000 |
| LogP | 2.01700 |
| Refractive Index | 1.726 |
Activity & Biological Data
| Additional Information | 1. Fabian A,et al. Veränderungen der Dauer der Schlafzyklen unter Flurazepam und Lopirazepam [Changes in the length of sleep cycles during administration of flurazepam and lopirazepam]. EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb. 1984 Sep;15(3):151-8. German. |
|---|
Frequently Asked Questions
What is the CAS number of Lopirazepam?
The CAS number of Lopirazepam is 42863-81-0.
What are the molecular formula and molecular weight of Lopirazepam?
Lopirazepam has molecular formula C14H9Cl2N3O2 and molecular weight 322.14600 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Lopirazepam (CAS 42863-81-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956636-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.