*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : DL6475000
CHEMICAL NAME : 2-Benzothiazolethiol
CAS REGISTRY NUMBER : 149-30-4
LAST UPDATED : 199710
DATA ITEMS CITED : 29
MOLECULAR FORMULA : C7-H5-N-S2
MOLECULAR WEIGHT : 167.25
WISWESSER LINE NOTATION : T56 BN DSJ CSH
COMPOUND DESCRIPTOR : Agricultural Chemical
Tumorigen
Drug
Mutagen
Reproductive Effector
SYNONYMS/TRADE NAMES :
* Benzothiazole-2-thione
* 2(3H)-Benzothiazolethione
* 2-Benzothiazolyl mercaptan
* Captax
* Kaptax
* MBT
* Mercaptobenzothiazole
* 2-Mercaptobenzothiazole
* 2-Merkaptobenzotiazol
* 2-Merkaptobenzthiazol
* NCI-C56519
* Pennac MBT powder
* Rokon
* Rotax
* Sulfadene
* USAF GY-3
* USAF XR-29
* Vulkacit mercapto
*** 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 : 100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IPSTB3 International Polymer Science and Technology. (Rapra Technology
Ltd., Shawbury, Shrewsbury, Shropshire SY4 4NR, UK) Volume(issue)/page/year:
3,93,1976
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >1270 mg/m3
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides
and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW,
Washington, DC 20460) History unknown. Volume(issue)/page/year:
8EHQ-1190-0987S
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 300 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
MEPAAX Medycyna Pracy. Industrial Medicine. (Ars-Polona, POB 1001, 00-068
Warsaw 1, Poland) V.1- 1950- Volume(issue)/page/year: 16,35,1965
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1158 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
Behavioral - convulsions or effect on seizure threshold
REFERENCE :
SRTCAC Science Reports of the Research Institutes, Tohoku University, Series
C: Medicine. (Tohoku University, Research Institute for Tuberculosis and
Cancer, 4-1 Seiryo-machi, Sendai, Japan) V.1- 1949-
Volume(issue)/page/year: 36(1-4),10,1989
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: AD277-689
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : >7940 mg/kg
TOXIC EFFECTS :
Behavioral - food intake (animal)
Behavioral - changes in motor activity (specific assay)
REFERENCE :
ATDAEI Acute Toxicity Data. Journal of the American College of Toxicology,
Part B. (Mary Ann Liebert, Inc., 1651 Third Ave., New York, NY 10128) V.1-
1990- Volume(issue)/page/year: 1,62,1990
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Bird - quail
DOSE/DURATION : >2150 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: OTS0535428
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 12220 mg/kg/13W-I
TOXIC EFFECTS :
Liver - changes in liver weight
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 18 gm/kg/16D-I
TOXIC EFFECTS :
Related to Chronic Data - death
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 97500 mg/kg/13W-I
TOXIC EFFECTS :
Liver - changes in liver weight
Related to Chronic Data - death
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 174 gm/kg/86W-C
TOXIC EFFECTS :
Kidney, Ureter, Bladder - other changes
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
ESKHA5 Eisei Shikenjo Hokoku. Bulletin of the Institute of Hygienic
Sciences. (Kokuritsu Eisei Shikenjo Kagaku, 18-1 Bushitsu Johobu,
Setagaya-ku, Tokyo 158, Japan) V.1- 1886- Volume(issue)/page/year:
(107),44,1989
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 770 mg/kg/7D-I
TOXIC EFFECTS :
Liver - hepatitis (hepatocellular necrosis), zonal
Liver - liver function tests impaired
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
14,221,1969
** TUMORIGENIC DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 195 gm/kg/2Y-I
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Blood - leukemia
Gastrointestinal - tumors
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 35 gm/kg/78W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Liver - tumors
Blood - tumors
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: PB223-159
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 215 mg/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Blood - tumors
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: PB223-159
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 195 gm/kg/2Y-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Liver - tumors
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,1988
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Parenteral
SPECIES OBSERVED : Rodent - rat
DOSE : 800 mg/kg
SEX/DURATION : male 2 day(s) pre-mating
female 2 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
BEXBAN Bulletin of Experimental Biology and Medicine (English Translation).
Translation of BEBMAE. (Plenum Pub. Corp., 233 Spring St., New York, NY
10013) V.41- 1956- Volume(issue)/page/year: 93,107,1982
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Parenteral
SPECIES OBSERVED : Rodent - rat
DOSE : 400 mg/kg
SEX/DURATION : female 4-11 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
BEXBAN Bulletin of Experimental Biology and Medicine (English Translation).
Translation of BEBMAE. (Plenum Pub. Corp., 233 Spring St., New York, NY
10013) V.41- 1956- Volume(issue)/page/year: 93,107,1982
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE : 4176 mg/kg
SEX/DURATION : female 6-14 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Specific Developmental Abnormalities - eye/ear
Reproductive - Specific Developmental Abnormalities - gastrointestinal
system
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: PB223-160
** MUTATION DATA **
TYPE OF TEST : Sister chromatid exchange
TEST SYSTEM : Rodent - hamster Ovary
DOSE/DURATION : 351 mg/L
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,1988
*** REVIEWS ***
TOXICOLOGY REVIEW
JJOMDZ JOM, Journal of Occupational Medicine. (American Occupational
Medicine Assoc., 150 N. Wacker Dr., Chicago, IL 60606) V.10- 1968-
Volume(issue)/page/year: 15,808,1973
*** U.S. STANDARDS AND REGULATIONS ***
EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION
FEREAC Federal Register. (U.S. Government Printing Office, Supt. of
Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year:
54,7740,1989
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 84030
No. of Facilities: 2428 (estimated)
No. of Industries: 45
No. of Occupations: 40
No. of Employees: 42637 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 84030
No. of Facilities: 4825 (estimated)
No. of Industries: 74
No. of Occupations: 62
No. of Employees: 86509 (estimated)
No. of Female Employees: 16409 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
NTP Carcinogenesis Studies (gavage);some evidence:rat
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,88
NTP Carcinogenesis Studies (gavage);equivocal evidence:mouse
NTPTR* National Toxicology Program Technical Report Series. (Research
Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-332,88
*** END OF RECORD ***