CAS 3653-48-3|MCPA

CHEMICAL IDENTIFICATION

RTECS NUMBER :

AG2625000

CHEMICAL NAME :

Acetic acid, ((4-chloro-o-tolyl)oxy)-, sodium salt

CAS REGISTRY NUMBER :

3653-48-3

LAST UPDATED :

199701

DATA ITEMS CITED :

22

MOLECULAR FORMULA :

C9-H8-Cl-O3.Na

MOLECULAR WEIGHT :

222.61

WISWESSER LINE NOTATION :

OV1OR DG B1 &-NA-

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 :

800 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

520 mg/m3/4H

TOXIC EFFECTS :

Behavioral - somnolence (general depressed activity) Behavioral - muscle weakness

TYPE OF TEST :

LD - Lethal dose

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>2 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

400 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

500 mg/kg

TOXIC EFFECTS :

Behavioral - muscle contraction or spasticity Gastrointestinal - hypermotility, diarrhea Blood - hemorrhage

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Unreported

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

700 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

450 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Unreported

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

870 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD - Lethal dose

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

>256 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - guinea pig

DOSE/DURATION :

700 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

14400 mg/kg/90D-C

TOXIC EFFECTS :

Behavioral - food intake (animal) Blood - pigmented or nucleated red blood cells Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

7056 mg/kg/9W-C

TOXIC EFFECTS :

Brain and Coverings - changes in brain weight Liver - changes in liver weight Endocrine - changes in adrenal weight

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

30 mg/kg/4H/17W-I

TOXIC EFFECTS :

Liver - other changes Endocrine - changes in spleen weight Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

1600 mg/kg/8D-I

TOXIC EFFECTS :

Behavioral - somnolence (general depressed activity) Skin and Appendages - dermatitis, other (after systemic exposure) Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

15 gm/kg/3W-I

TOXIC EFFECTS :

Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

11400 mg/kg

SEX/DURATION :

male 60 day(s) pre-mating

TOXIC EFFECTS :

Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

542 mg/kg

SEX/DURATION :

female 5 day(s) after conception

TOXIC EFFECTS :

Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Unreported

DOSE :

3900 mg/kg

SEX/DURATION :

multigeneration

TOXIC EFFECTS :

Reproductive - Effects on Newborn - biochemical and metabolic

MUTATION DATA

TEST SYSTEM :

Bird - chicken

DOSE/DURATION :

2800 ug/egg

REFERENCE :

EMMUEG Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 1987- Volume(issue)/page/year: 19,327,1992 *** 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