N-Desmethyl Clobazam

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Names

[ CAS No. ]:
22316-55-8

[ Name ]:
N-Desmethyl Clobazam

[Synonym ]:
N-Desmethylclobazam
7-Chloro-5-phenyl-1,5-dihydro-3H-1,5-benzodiazepine-2,4-dione N-Desmethylclobazam
7-chloro-5-phenyl-1H-1,5-benzodiazepine-2,4-dione
Clobazam impurity A

Chemical & Physical Properties

[ Density]:
1.363 g/cm3

[ Boiling Point ]:
601.8ºC at 760 mmHg

[ Molecular Formula ]:
C15H11ClN2O2

[ Molecular Weight ]:
286.71300

[ Flash Point ]:
317.7ºC

[ Exact Mass ]:
286.05100

[ PSA ]:
52.90000

[ LogP ]:
3.49700

[ Vapour Pressure ]:
1.95E-14mmHg at 25°C

[ Index of Refraction ]:
1.631

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DE9600625
CHEMICAL NAME :
1H-1,5-Benzodiazepine-2,4(3H,5H)-dione, 8-chloro-1-phenyl-
CAS REGISTRY NUMBER :
22316-55-8
LAST UPDATED :
199712
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C15-H11-Cl-N2-O2
MOLECULAR WEIGHT :
286.73

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>2583 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #3760074

Safety Information

[ Symbol ]:

GHS02, GHS07

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H225-H302 + H312 + H332-H319

[ Precautionary Statements ]:
P210-P261-P302 + P352 + P312-P304 + P340 + P312-P337 + P313-P403 + P235

[ RIDADR ]:
UN 1648 3 / PGII

[ HS Code ]:
2933990090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • ethyl 3-(N-(5-chloro-2-nitrophenyl)anilino)-3-oxopropanoate
  • 4-chloro-2-N-phenylbenzene-1,2-diamine
  • malonoyl chloride
  • 5-Chloro-2-nitro-N-phenylaniline
  • 4-Chlorobenzene-1,2-diamine
  • 4-Chloro-2-nitroaniline
  • 4-Chloro-2-fluoronitrobenzene

DownStream

  • clobazam
  • 8-chloro-1-methyl-5-methylsulfanyl-6-phenyl-[1,2,4]triazolo[4,3-a][1,5]benzodiazepine
  • 8-chloro-5-methylsulfanyl-6-phenyl-[1,2,4]triazolo[4,3-a][1,5]benzodiazepine
  • 8-chloro-5-methylsulfanyl-1,6-diphenyl-[1,2,4]triazolo[4,3-a][1,5]benzodiazepine
  • 8-chloro-1-methyl-5-(4-methylpiperazin-1-yl)-6-phenyl-[1,2,4]triazolo[4,3-a][1,5]benzodiazepine
  • 2-[(8-chloro-1-methyl-6-phenyl-[1,2,4]triazolo[4,3-a][1,5]benzodiazepin-5-yl)sulfanyl]-N,N-dimethylethanamine
  • 4-Amino-8-chloro-1,3-dihydro-1-phenyl-2H-1,5-benzodiazepin-2-one

Customs

[ 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%

Articles

Blood concentrations of clobazam and norclobazam in a lethal case involving clobazam, meprobamate and clorazepate.

Leg. Med. (Tokyo.) 12(6) , 300-4, (2010)

Clobazam is a benzodiazepine with anti-anxiety and anticonvulsant properties marketed in several countries. Norclobazam, a metabolite of clobazam, has similar pharmacological activity but weaker sedat...

Simultaneous determination of clobazam and its major metabolite in human plasma by a rapid HPLC method.

J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 823(2) , 167-71, (2005)

A rapid and specific HPLC method has been developed and validated for simultaneous determination of clobazam, the anticonvulsant agent, and its major metabolite in human plasma. The sample preparation...

A major influence of CYP2C19 genotype on the steady-state concentration of N-desmethylclobazam.

Brain Dev. 26(8) , 530-4, (2004)

N-desmethylclobazam (N-CLB), the major metabolite of clobazam (CLB), exerts a large influence on therapeutic and adverse effects of CLB. A substantial inter-individual variability has been observed in...


More Articles

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  • 1-[3-(aminomethyl)but-3-en-1-yl]-1H-pyrazole
  • 2,2-Dichloro-1-(4-pentylphenyl)ethanol
  • 1-Ethoxy-2-fluoro-3-iodo-5-methoxybenzene
  • methyl({2-[1-(2-methylpropyl)-1H-pyrazol-3-yl]ethyl})amine
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