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Lorazepam

CAS: 846-49-1 | C15H10Cl2N2O2

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 846-49-1

Molecular Formula: C15H10Cl2N2O2

Molecular Weight: 321.163 g/mol

Names and Synonyms:

Lorazepam Common Name

Titus Synonym

Trapex Synonym

NIC Synonym

7-Chloro-5-(2-chlorophenyl)-3-hydroxy-1H-1,4-benzodiazepin-2(3H)-one Synonym

Lorazem Synonym

Tavor Expidet Synonym

NSC 289758 Synonym

Lorsilan Synonym

Pro Dorm Synonym

Somagerol Synonym

Quait Synonym

Sedazin Synonym

Securit Synonym

Psicopax Synonym

Emotival Synonym

Control Synonym

Stapam Synonym

Reposepan Synonym

Sinestron Synonym

Tranqipam Synonym

Rocosgen Synonym

Lorazin Synonym

Aplacasse Synonym

Lorivan Synonym

Lorzem Synonym

Kalmalin Synonym

Trapax Synonym

Equitam Synonym

Lorazon Synonym

Aripax Synonym

Anzepam Synonym

Anxira Synonym

Azurogen Synonym

Silence Synonym

Laubeel Synonym

Lopam Synonym

Anxiedin Synonym

Bonton Synonym

Loridem Synonym

Sedizepan Synonym

Lozepam Synonym

Lorazene Synonym

Punktyl Synonym

Lorans Synonym

Duralozam Synonym

Nervistop L Synonym

Sidenar Synonym

Sedatival Synonym

Efasedan Synonym

Lorsedal Synonym

Lorax Synonym

Lorazep Synonym

Upan Synonym

Novhepar Synonym

Lorat Synonym

Bonatranquan Synonym

Renaquil Synonym

Wintin Synonym

Lorenin Synonym

Merlit Synonym

Lorabenz Synonym

Loram Synonym

Novo-lorazem Synonym

Aplacassee Synonym

Larpose Synonym

Lorapam Synonym

Apo-Lorazepam Synonym

Orfidal Synonym

Almazine Synonym

(RS)-Lorazepam Synonym

(±)-Lorazepam Synonym

Delormetazepam Synonym

Norlormetazepam Synonym

Wypax Synonym

Ativan Synonym

Tavor Synonym

Temesta Synonym

o-Chloroxazepam Synonym

o-Chlorooxazepam Synonym

Demethyllormetazepam Synonym

Lorazepam Synonym

Wy 4036 Synonym

7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-1,4-benzodiazepin-2-one Synonym

7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-1,4-benzodiazepin-2-one Synonym

2H-1,4-Benzodiazepin-2-one, 7-chloro-5-(o-chlorophenyl)-1,3-dihydro-3-hydroxy- Synonym

2H-1,4-Benzodiazepin-2-one, 7-chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy- Synonym

Identifiers:

SMILES:

OC1=Nc2ccc(Cl)cc2C(c2ccccc2Cl)=NC1O

InChI:

InChI=1S/C15H10Cl2N2O2/c16-8-5-6-12-10(7-8)13(19-15(21)14(20)18-12)9-3-1-2-4-11(9)17/h1-7,15,21H,(H,18,20)

Spectral Data

NMR, IR, and Mass spectral data

1H NMR

13C NMR

Predicting NMR spectra...

10 ppm 9 8 7 6 5 4 3 2 1 0 ppm

Shift (ppm)	Multiplicity	Integration	Assignment

200 ppm 180 160 140 120 100 80 60 40 20 0 ppm

Shift (ppm)	DEPT	Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

PubChem CAS NIST

All Properties

Comprehensive physical and chemical properties

Physical Properties

Property	Value	Source
molecular_mass	321.16 g/mol	Legacy Database
cas-canonical-smile	O=C1NC=2C=CC(Cl)=CC2C(=NC1O)C=3C=CC=CC3Cl None	Legacy Database
cas-inchi	InChI=1S/C15H10Cl2N2O2/c16-8-5-6-12-10(7-8)13(19-15(21)14(20)18-12)9-3-1-2-4-11(9)17/h1-7,15,21H,(H,18,20) None	Legacy Database
cas-inchi-key	InChIKey=DIWRORZWFLOCLC-UHFFFAOYSA-N None	Legacy Database
cas-melting-point	167 °C None	Legacy Database
cas-name	Lorazepam None	Legacy Database
LogP	3.750800000000002	RDKit

Molecular

Property	Value	Source
Molecular Weight	321.163 g/mol	RDKit

Exact

Property	Value	Source
Exact Molecular Weight	320.01193292 g/mol	RDKit

Heavy

Property	Value	Source
Heavy Atom Count	21 count	RDKit

Hydrogen

Property	Value	Source
Hydrogen Bond Acceptors	3 count	RDKit
Hydrogen Bond Donors	2 count	RDKit

Rotatable

Property	Value	Source
Rotatable Bonds	1 count	RDKit

Aromatic

Property	Value	Source
Aromatic Ring Count	2 count	RDKit

Topological

Property	Value	Source
Topological Polar Surface Area	65.18 Å²	RDKit

Molar

Property	Value	Source
Molar Refractivity	84.27360000000002	RDKit