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MSDS  : Acetic acid, oxo((3-(1H-tetrazol-5-yl)phenyl)amino)-, butyl ester
CAS  : 82989-25-1
SYNONYMS  : * 5-(3-n-Butyloxalylaminophenyl)tetrazole * Butyl 3'-(1H-tetrazol-5-yl)oxanilate * MTB * Oxo((3-(1H-tetrazol-5-yl)phenyl)amino)acetic acid butyl ester * Tazanolast * WP-833
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : AJ1480000
CHEMICAL NAME : Acetic acid, oxo((3-(1H-tetrazol-5-yl)phenyl)amino)-,
butyl ester
CAS REGISTRY NUMBER : 82989-25-1
LAST UPDATED : 199612
DATA ITEMS CITED : 14
MOLECULAR FORMULA : C13-H15-N5-O3
MOLECULAR WEIGHT : 289.33
COMPOUND DESCRIPTOR : Drug
Reproductive Effector
SYNONYMS/TRADE NAMES :
* 5-(3-n-Butyloxalylaminophenyl)tetrazole
* Butyl 3'-(1H-tetrazol-5-yl)oxanilate
* MTB
* Oxo((3-(1H-tetrazol-5-yl)phenyl)amino)acetic acid butyl ester
* Tazanolast
* WP-833

*** 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 : >4 gm/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1423 mg/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - effect, not otherwise specified
Lungs, Thorax, or Respiration - dyspnea
Gastrointestinal - hypermotility, diarrhea
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >4 gm/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1119 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex)
Behavioral - convulsions or effect on seizure threshold
Lungs, Thorax, or Respiration - other changes
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >4 gm/kg
TOXIC EFFECTS :
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1120 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: #4778816

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >4 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1121 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex)
Lungs, Thorax, or Respiration - cyanosis
Lungs, Thorax, or Respiration - other changes
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,5,1989

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : >4 gm/kg
TOXIC EFFECTS :
Gastrointestinal - ulceration or bleeding from stomach
Gastrointestinal - hypermotility, diarrhea
Gastrointestinal - nausea or vomiting
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,11,1989

** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 57600 mg/kg/13W-I
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea
Blood - changes in bone marrow (not otherwise specified)
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,53,1989

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 14840 mg/kg/53W-I
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,177,1989

** REPRODUCTIVE DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 24 gm/kg
SEX/DURATION : female 13 day(s) pre-mating - 7 day(s) after
conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,255,1989

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 13200 mg/kg
SEX/DURATION : female 7-17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - behavioral
Reproductive - Effects on Newborn - delayed effects
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,265,1989

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 30 gm/kg
SEX/DURATION : female 17-20 day(s) after conception
lactating female 22 day(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight
gain)
REFERENCE :
KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda
Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960-
Volume(issue)/page/year: 23,283,1989

*** END OF RECORD ***
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Acetic acid,oxo((7-oxo-1,3,5-cycloheptatrien-1-yl)amino)-, ethylester 65425-48-1
Acetic acid, fluoro-, (2-chloroethyl) ester 1537-62-8
Acetic acid, ((7-oxo-7H-benz(de)anthracen-3-yl)thio)- 69658-13-5
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Acetic acid,(2-((3-oxo-2(3H)-benzofuranylidene)methyl)phenoxy)- 70170-78-4
Acetic acid,(3-((3-oxo-2(3H)-benzofuranylidene)methyl)phenoxy)- 70170-89-7
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Acetic acid, fluoro-, copper(II) salt 20424-95-7
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Acetic acid, (3-oxo-5-phenyl-2(3H)-furanylidene)-,ethyl ester 97181-01-6
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Acetic acid, oxo((4-phenyl-2-thiazolyl)amino)-,2-ethoxyethyl ester 81529-70-6
Acetic acid, oxo((4-phenyl-2-thiazolyl)amino)-,2-(2-methoxyethoxy)ethyl ester 81529-71-7
Acetic acid, oxo((4-phenyl-2-thiazolyl)amino)-,2-methoxyethyl ester 81529-69-3
Acetic acid, fluoro-, dodecyl ester 81529-69-3
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