*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : XI4100000
CHEMICAL NAME           : 1,3,4-Thiadiazole, 2,2'-(methylenediimino)bis-
CAS REGISTRY NUMBER     : 26907-37-9
BEILSTEIN REFERENCE NO. : 0993888
LAST UPDATED            : 199612
DATA ITEMS CITED        : 23
MOLECULAR FORMULA       : C5-H6-N6-S2
MOLECULAR WEIGHT        : 214.29
WISWESSER LINE NOTATION : T5NN DSJ CM1M- CT5NN DSJ
COMPOUND DESCRIPTOR     : Agricultural Chemical
                          Drug
                          Mutagen
                          Reproductive Effector
SYNONYMS/TRADE NAMES :
   * Bis-A-tda
   * N,N'-Bis(1,3,4-thiadazol-2-yl)methane diamine
   * Di-Ku-shuang
   * N,N'-Methylenebis(2-amino-1,3,4-thiadiazole)
   * NSC-143019
   * TK-5477
 
                       *** 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           : 260 mg/kg
TOXIC EFFECTS :
   Behavioral - food intake (animal)
   Gastrointestinal - changes in structure or function of salivary glands
   Gastrointestinal - hypermotility, diarrhea
REFERENCE :
   CIYPDA Sichuan Yixueyuan Xuebao.  Acta Akademiae Medicinae Sichuan.
   (Beijing, Peop. Rep. China) V.1-16, 1970-85.  For publisher information, see
   HYDXET.  Volume(issue)/page/year: 12,345,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 82 mg/kg
TOXIC EFFECTS :
   Behavioral - muscle weakness
   Gastrointestinal - hypermotility, diarrhea
   Skin and Appendages - hair
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 35,68,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 125 mg/kg
TOXIC EFFECTS :
   Behavioral - muscle weakness
   Gastrointestinal - hypermotility, diarrhea
   Skin and Appendages - hair
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 35,68,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2250 mg/kg
TOXIC EFFECTS :
   Behavioral - food intake (animal)
   Gastrointestinal - changes in structure or function of salivary glands
   Gastrointestinal - hypermotility, diarrhea
REFERENCE :
   CIYPDA Sichuan Yixueyuan Xuebao.  Acta Akademiae Medicinae Sichuan.
   (Beijing, Peop. Rep. China) V.1-16, 1970-85.  For publisher information, see
   HYDXET.  Volume(issue)/page/year: 12,345,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 430 mg/kg
TOXIC EFFECTS :
   Behavioral - muscle weakness
   Gastrointestinal - hypermotility, diarrhea
   Skin and Appendages - hair
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 35,68,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 145 mg/kg
TOXIC EFFECTS :
   Behavioral - food intake (animal)
   Gastrointestinal - changes in structure or function of salivary glands
   Gastrointestinal - hypermotility, diarrhea
REFERENCE :
   CIYPDA Sichuan Yixueyuan Xuebao.  Acta Akademiae Medicinae Sichuan.
   (Beijing, Peop. Rep. China) V.1-16, 1970-85.  For publisher information, see
   HYDXET.  Volume(issue)/page/year: 12,345,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 125 mg/kg
TOXIC EFFECTS :
   Behavioral - muscle weakness
   Gastrointestinal - hypermotility, diarrhea
   Skin and Appendages - hair
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 35,68,1976
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Behavioral - food intake (animal)
   Gastrointestinal - changes in structure or function of salivary glands
   Gastrointestinal - hypermotility, diarrhea
REFERENCE :
   CIYPDA Sichuan Yixueyuan Xuebao.  Acta Akademiae Medicinae Sichuan.
   (Beijing, Peop. Rep. China) V.1-16, 1970-85.  For publisher information, see
   HYDXET.  Volume(issue)/page/year: 12,345,1981
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Behavioral - muscle weakness
   Gastrointestinal - hypermotility, diarrhea
   Skin and Appendages - hair
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 35,68,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 2 gm/kg
TOXIC EFFECTS :
   Behavioral - food intake (animal)
   Gastrointestinal - changes in structure or function of salivary glands
   Gastrointestinal - hypermotility, diarrhea
REFERENCE :
   CIYPDA Sichuan Yixueyuan Xuebao.  Acta Akademiae Medicinae Sichuan.
   (Beijing, Peop. Rep. China) V.1-16, 1970-85.  For publisher information, see
   HYDXET.  Volume(issue)/page/year: 12,345,1981
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Behavioral - food intake (animal)
   Gastrointestinal - changes in structure or function of salivary glands
   Gastrointestinal - hypermotility, diarrhea
REFERENCE :
   CIYPDA Sichuan Yixueyuan Xuebao.  Acta Akademiae Medicinae Sichuan.
   (Beijing, Peop. Rep. China) V.1-16, 1970-85.  For publisher information, see
   HYDXET.  Volume(issue)/page/year: 12,345,1981
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 560 mg/kg/4W-I
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Liver - hepatitis (hepatocellular necrosis), zonal
   Endocrine - other changes
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 34,480,1975
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 140 mg/kg/4W-I
TOXIC EFFECTS :
   Liver - hepatitis (hepatocellular necrosis), zonal
   Blood - normocytic anemia
   Endocrine - other changes
REFERENCE :
   TAKHAA Takeda Kenkyusho Ho.  Journal of the Takeda Research Laboratories.
   (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532,
   Japan)  V.29-    1970-  Volume(issue)/page/year: 34,480,1975
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - other developmental
   abnormalities
REFERENCE :
   CPHPA5 Jiepou Xuebao.  Journal of Anatomy.  (China International Book
   Trading Corp., POB 2820, Beijing, Peop. Rep. China)  V.1-9, 1953-66; V.10-
   1979-  Volume(issue)/page/year: 12,212,1981
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 1 mg/kg
SEX/DURATION            : female 10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - Central Nervous System
   Reproductive - Specific Developmental Abnormalities - craniofacial
   (including nose and tongue)
   Reproductive - Specific Developmental Abnormalities - body wall
REFERENCE :
   SURR** Szechuan University Research Report, Natural Science.  (Szechuan
   University, Szechuan, Peop. Rep. China)  No.2/3-    1978-
   Volume(issue)/page/year: 2/3,105,1978
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 1 mg/kg
SEX/DURATION            : female 10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
   SURR** Szechuan University Research Report, Natural Science.  (Szechuan
   University, Szechuan, Peop. Rep. China)  No.2/3-    1978-
   Volume(issue)/page/year: 2/3,105,1978
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 10 day(s) after conception
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 - fetal death
   Reproductive - Specific Developmental Abnormalities - eye/ear
REFERENCE :
   SURR** Szechuan University Research Report, Natural Science.  (Szechuan
   University, Szechuan, Peop. Rep. China)  No.2/3-    1978-
   Volume(issue)/page/year: 2/3,105,1978
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
   SURR** Szechuan University Research Report, Natural Science.  (Szechuan
   University, Szechuan, Peop. Rep. China)  No.2/3-    1978-
   Volume(issue)/page/year: 2/3,105,1978
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 6-12 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
   number of implants per female; total number of implants per corpora lutea)
   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)
REFERENCE :
   CYLPDN Zhongguo Yaoli Xuebao.  Acta Pharmacologica Sinica.  Chinese Journal
   of Pharmacology.  (China International Book Trading Corp., POB 2820,
   Beijing, Peop. Rep. China)  V.1-    1980-  Volume(issue)/page/year:
   5,195,1984
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 6-12 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
   CYLPDN Zhongguo Yaoli Xuebao.  Acta Pharmacologica Sinica.  Chinese Journal
   of Pharmacology.  (China International Book Trading Corp., POB 2820,
   Beijing, Peop. Rep. China)  V.1-    1980-  Volume(issue)/page/year:
   5,195,1984
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 45 mg/kg
SEX/DURATION            : female 10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
   resorbed implants per total number of implants)
   Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
   YHHPAL Yaoxue Xuebao.  Acta Pharmaceutica Sinica.  Pharmaceutical Journal.
   (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep.
   China)  V.1-    1953-    Suspended 1966-78.  Volume(issue)/page/year:
   16,654,1981
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 60 mg/kg
SEX/DURATION            : female 10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
   YHHPAL Yaoxue Xuebao.  Acta Pharmaceutica Sinica.  Pharmaceutical Journal.
   (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep.
   China)  V.1-    1953-    Suspended 1966-78.  Volume(issue)/page/year:
   16,654,1981
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Micronucleus test
ROUTE OF EXPOSURE       : Oral
TEST SYSTEM             : Rodent - mouse
DOSE/DURATION           : 200 mg/kg
REFERENCE :
   ENVRAL Environmental Research.  (Academic Press, Inc., 1 E. First St.,
   Duluth, MN 55802) V.1-    1967-  Volume(issue)/page/year: 43,359,1987
 
                            *** END OF RECORD ***