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MSDS  : Oxazolo(3,2-d)(1,4)benzodiazepin-6(5H)-one, 2,3,7,11b-tetrahydro-10-bromo-11b-(2-fluoro phenyl)-
CAS  : 59128-97-1
SYNONYMS  : * 10-Bromo-11b-(2-fluorophenyl)-2,3,7,11b-tetrahydrooxazolo(3,2-d)(1,4)ben zodiazepin-6(5H)-one * CS-430 * Haloxazolam * Somelin
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : RQ5831500
CHEMICAL NAME : Oxazolo(3,2-d)(1,4)benzodiazepin-6(5H)-one,
2,3,7,11b-tetrahydro-10-bromo-11b-(2-fluoro phenyl)-
CAS REGISTRY NUMBER : 59128-97-1
BEILSTEIN REFERENCE NO. : 0569670
LAST UPDATED : 199612
DATA ITEMS CITED : 7
MOLECULAR FORMULA : C17-H14-Br-F-N2-O2
MOLECULAR WEIGHT : 377.24
COMPOUND DESCRIPTOR : Drug
Reproductive Effector
SYNONYMS/TRADE NAMES :
* 10-Bromo-11b-(2-fluorophenyl)-2,3,7,11b-tetrahydrooxazolo(3,2-d)(1,4)ben
zodiazepin-6(5H)-one
* CS-430
* Haloxazolam
* Somelin

*** HEALTH HAZARD DATA ***

** ACUTE TOXICITY DATA **

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 2858 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay)
Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research
Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku,
Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 27,64,1975

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >3 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka
Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959-
Volume(issue)/page/year: 22,1501,1980

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >3 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka
Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959-
Volume(issue)/page/year: 22,1501,1980

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1413 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay)
Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research
Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku,
Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 27,64,1975

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >15 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka
Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959-
Volume(issue)/page/year: 22,1501,1980

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >15 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka
Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959-
Volume(issue)/page/year: 22,1501,1980

** REPRODUCTIVE DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE : 3600 mg/kg
SEX/DURATION : female 1-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research
Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku,
Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 27,64,1975

*** END OF RECORD ***
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