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OXAZEPAM

OXAZEPAM Structure
CAS No.
604-75-1
Chemical Name:
OXAZEPAM
Synonyms
Oxazepine;Serax;Zaxopam;7-Chloro-1,3-dihydro-3-hydroxy-5-phenyl-2H-1,4-benzodiazepin-2-one;2H-1,4-Benzodiazepin-2-one, 7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-;QUEN;Uskan;Vaben;Bonare;Isodin
CBNumber:
CB6444321
Molecular Formula:
C15H11ClN2O2
Molecular Weight:
286.71
MOL File:
604-75-1.mol
Modify Date:
2023/6/8 9:03:07

OXAZEPAM Properties

Melting point 205-206°
Boiling point 506.5±50.0 °C(Predicted)
Density 1.3052 (rough estimate)
refractive index 1.5200 (estimate)
Flash point 11 °C
storage temp. −20°C
solubility Practically insoluble in water, slightly soluble in ethanol (96 per cent).
pka pKa 1.6/11.6(5% MeOH in H2O,t =20,I=0.15) (Uncertain)
Water Solubility 20mg/L(22 ºC)
CAS DataBase Reference 604-75-1(CAS DataBase Reference)
IARC 2B (Vol. Sup 7, 66) 1996
EPA Substance Registry System Oxazepam (604-75-1)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07,GHS08
Signal word  Warning
Hazard statements  H336-H351
Precautionary statements  P202-P261-P271-P280-P304+P340+P312-P308+P313
Hazard Codes  Xn,T,F
Risk Statements  40-39/23/24/25-23/24/25-11
Safety Statements  7-16-36/37-45
RIDADR  UN 1230 3/PG 2
WGK Germany  3
RTECS  DF1400000
HazardClass  6.1(b)
PackingGroup  III
HS Code  2933910000
Toxicity LD50 in mice, rats (mg/kg): >5010, >5010 orally (Goldenthal)
NFPA 704
3
0 0

OXAZEPAM Chemical Properties,Uses,Production

Chemical Properties

Off-White Solid

Uses

Anxiolytic; muscle relaxant (skeletal); anticonvulsant; ligand for the GABAA receptor benzodiazepine modulatory site. Controlled substance (depressant).

Definition

ChEBI: A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a chloro group at position 7, a hydroxy group at position 3 and phenyl group at position 5.

General Description

Oxazepam, 7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-2H-1,4-benzodiazpin-2-one (Serax), isan active metabolite of both chlordiazepoxide and diazepamand can be considered a prototype for the 3-hydroxy benzo-diazepines. It is much more polar than diazepam. Oxazepam is rapidlyinactivated to glucuronidated metabolites that are excretedin the urine. Thus, the half-life of oxazepam is about 4 to 8hours, and it is marketed as a short-acting anxiolytic. As aresult, its cumulative effects with chronic therapy are muchless than with long-acting benzodiazepine such as chlordiazepoxideand diazepam.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

OXAZEPAM is stable in light and is non hygroscopic. OXAZEPAM is stable in neutral solution. OXAZEPAM is hydrolyzed by acids and bases.

Fire Hazard

Flash point data for OXAZEPAM are not available; however, OXAZEPAM is probably combustible.

Pharmacokinetics

The half-life of oxazepam is approximately 4 to 8 hours, and cumulative effects with chronic therapy are much less than with long-acting benzodiazepines, such as chlordiazepoxide and diazepam. Lorazepam is the 2′-chloro derivative of oxazepam and has a similarly short half-life (2–6 hours) and pharmacological activity.

Metabolism

Oxazepam is an active metabolite of both chlordiazepoxide and diazepam and is marketed separately, as a shortacting anxiolytic agent. Oxazepam is rapidly inactivated to glucuronidated metabolites that are excreted in the urine.

OXAZEPAM Preparation Products And Raw materials

Raw materials

Preparation Products

2h-1,4-benzodiazepin-2-one,7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-[qr] 7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-2h-1,4-benzodiazepin-2-one[qr] 7-Chloro-1,3-dihydro-3-hydroxy-5-phenyl-2H-1,4-benzodiazepine-2-one 7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-2h-1,4-benzodiazepine-2-one[qr] 7-chloro-1,3-dihydro-3-hydroxy-5-phenyl-2h-4-benzodiazepin-2-one 7-Chloro-3-hydroxy-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one 7-chloro-3-hydroxy-5-phenyl-1,3-dihydro-2h-1,4-benzodiazepin-2-one[qr] 7-Chloro-3-hydroxy-5-phenyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one abboxapam Adumbran 1,3-dihydro-7-chloro-3-hydroxy-5-phenyl-2h-1,4-benzodiazepin-2-one adumbran[qr] ansiolisina[qr] Ansioxacepam ansioxacepam[qr] Anxiolit anxiolit[qr] anxiolitretard[qr] Aplakil aplakil[qr] Astress astress[qr] Azutranquil Bonare bonare[qr] Camazepam-metabolite CB 8092 Clorazepate-metabolite Diazepam-metabolite Drimuel drimuel[qr] Droxacepam droxacepam[qr] Durazepam enidrel[qr] Hi-Long hilong[qr] Isodin isodin[qr] Ketazolam-metabolite Lederpam Limbial limbial[qr] Murelax n-desmethyltemazepam Nesontil nesontil[qr] Noctazepam noctazepam[qr] nortemazepam notaral[qr] nozepam[qr] ox[qr] Oxanid Oxa-puren Oxozepam Pacienx pacienx[qr]