*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : KI7968000
CHEMICAL NAME : Ethanesulfonic acid, 2-mercapto-, monosodium salt
CAS REGISTRY NUMBER : 19767-45-4
LAST UPDATED : 199512
DATA ITEMS CITED : 19
MOLECULAR FORMULA : C2-H5-O3-S2.Na
MOLECULAR WEIGHT : 164.18
WISWESSER LINE NOTATION : WSO&2SH &-NA-
COMPOUND DESCRIPTOR : Drug
Reproductive Effector
SYNONYMS/TRADE NAMES :
* 2-Mercaptoethanesulfonic acid monosodium salt
* Mesna
* Mesnum
* Mistabron
* Mitexan
* Mucofluid
* Sodium 2-mercaptoethanesulfonate
* Uromitexan
*** 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 : 4440 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EJCODS European Journal of Cancer and Clinical Oncology. (Pergamon Press,
c/o Elsevier Science, 660 White Plains Rd., Tarrytown, NY 10591) V.17(7)-
25, 1981-89. For publisher information, see EJCAEL Volume(issue)/page/year:
18,1377,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1251 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EJCODS European Journal of Cancer and Clinical Oncology. (Pergamon Press,
c/o Elsevier Science, 660 White Plains Rd., Tarrytown, NY 10591) V.17(7)-
25, 1981-89. For publisher information, see EJCAEL Volume(issue)/page/year:
18,1377,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 2313 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex)
Gastrointestinal - ulceration or bleeding from small intestine
Skin and Appendages - hair
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: 25,5,1991
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1510 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex)
Gastrointestinal - ulceration or bleeding from small intestine
Nutritional and Gross Metabolic - body temperature decrease
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: 25,5,1991
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 6102 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EJCODS European Journal of Cancer and Clinical Oncology. (Pergamon Press,
c/o Elsevier Science, 660 White Plains Rd., Tarrytown, NY 10591) V.17(7)-
25, 1981-89. For publisher information, see EJCAEL Volume(issue)/page/year:
18,1377,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 2005 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EJCODS European Journal of Cancer and Clinical Oncology. (Pergamon Press,
c/o Elsevier Science, 660 White Plains Rd., Tarrytown, NY 10591) V.17(7)-
25, 1981-89. For publisher information, see EJCAEL Volume(issue)/page/year:
18,1377,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see
PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2-
1939- Volume(issue)/page/year: 23,355,1960
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1720 mg/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex)
Blood - changes in spleen
Nutritional and Gross Metabolic - body temperature decrease
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: 25,5,1991
TYPE OF TEST : LD - Lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : >2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EJCODS European Journal of Cancer and Clinical Oncology. (Pergamon Press,
c/o Elsevier Science, 660 White Plains Rd., Tarrytown, NY 10591) V.17(7)-
25, 1981-89. For publisher information, see EJCAEL Volume(issue)/page/year:
18,1377,1982
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 400 mg/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea
Gastrointestinal - nausea or vomiting
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
EJCODS European Journal of Cancer and Clinical Oncology. (Pergamon Press,
c/o Elsevier Science, 660 White Plains Rd., Tarrytown, NY 10591) V.17(7)-
25, 1981-89. For publisher information, see EJCAEL Volume(issue)/page/year:
18,1377,1982
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 72 gm/kg/26W-C
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes in bladder weight
Blood - normocytic anemia
Related to Chronic Data - changes in prostate weight
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: 25,91,1991
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 17500 mg/kg/35D-C
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - changes in lung weight
Kidney, Ureter, Bladder - other changes in urine composition
Blood - normocytic anemia
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: 25,34,1991
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 48 gm/kg/4W-I
TOXIC EFFECTS :
Related to Chronic Data - death
REFERENCE :
DECRDP Drugs under Experimental and Clinical Research. (Bioscience
Ediprint, Blvd. James-Fazy 13, 1201 Geneva 1, Switzerland) V.1- 1977-
Volume(issue)/page/year: 14,473,1988
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 11200 mg/kg/35D-C
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
Blood - other changes
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - phosphatases
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: 25,63,1991
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE : 8800 mg/kg
SEX/DURATION : female 7-17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4
per # born alive)
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: 24,6552,1990
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE : 4400 mg/kg
SEX/DURATION : female 7-17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
Reproductive - Effects on Newborn - behavioral
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: 24,6552,1990
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE : 10400 mg/kg
SEX/DURATION : female 7-17 day(s) after conception
lactating female 21 day(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Effects on Newborn - physical
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: 24,6573,1990
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE : 26880 mg/kg
SEX/DURATION : male 9 week(s) pre-mating
female 2 week(s) pre-mating - 7 day(s) after
conception
TOXIC EFFECTS :
Reproductive - Maternal Effects - other effects
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
number of implants per female; total number of implants per corpora lutea)
Reproductive - Effects on Embryo or Fetus - other effects to embryo
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: 24,6541,1990
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rabbit
DOSE : 7800 mg/kg
SEX/DURATION : female 6-18 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 - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Effects on Embryo or Fetus - fetal death
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: 24,6595,1990
*** END OF RECORD ***