*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : YS8925000
CHEMICAL NAME : Urea, 3-(3,4-dichlorophenyl)-1,1-dimethyl-
CAS REGISTRY NUMBER : 330-54-1
OTHER CAS REGISTRY NOS. : 102962-29-8
BEILSTEIN REFERENCE NO. : 2215168
REFERENCE : 4-12-00-01263 (Beilstein Handbook Reference)
LAST UPDATED : 199712
DATA ITEMS CITED : 36
MOLECULAR FORMULA : C9-H10-Cl2-N2-O
MOLECULAR WEIGHT : 233.11
WISWESSER LINE NOTATION : GR BG DMVN1&1
COMPOUND DESCRIPTOR : Agricultural Chemical
Tumorigen
Mutagen
Reproductive Effector
SYNONYMS/TRADE NAMES :
* AF 101
* DCMU
* Dichlorfenidim
* 3-(3,4-Dichlorophenol)-1,1-dimethylurea
* N'-(3,4-Dichlorophenyl)-N,N-dimethylurea
* 3-(3,4-Dichlorophenyl)-1,1-dimethylurea
* 1-(3,4-Dichlorophenyl)-3,3-dimethyluree
* 3-(3,4-Dichlor-phenyl)-1,1-dimethyl-harnstoff
* 3-(3,4-Dichloor-fenyl)-1,1-dimethylureum
* 3-(3,4-Dicloro-fenyl)-1,1-dimetil-urea
* 1,1-Dimethyl-3-(3,4-dichlorophenyl)urea
* Direx 4L
* Diuron
* Diuron
* Diuron 4L
* DMU
* DP Hardener 95
* Duran
* Farmco diuron
* Herbatox
* HW 920
* Karmex
* Karmex Diuron Herbicide
* Karmex DW
* Lucenit
* Marmer
* Sup'r flo
* Telvar diuron weed killer
* Unidron
* USAF P-7
* USAF XR-42
*** 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 : 1017 mg/kg
TOXIC EFFECTS :
Behavioral - general anesthetic
Behavioral - ataxia
REFERENCE :
JAFCAU Journal of Agricultural and Food Chemistry. (American Chemical Soc.,
Distribution Office Dept. 223, POB 57136, West End Stn., Washington, DC
20037) V.1- 1953- Volume(issue)/page/year: 18,1104,1970
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave.,
Willoughy, OH 44094) Volume(issue)/page/year: -,C115,1991
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Unreported
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 3400 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
30ZDA9 "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag
New York, Inc., 1971 Volume(issue)/page/year: -,231,1971
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
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 : Unreported
SPECIES OBSERVED : Bird - duck
DOSE/DURATION : >2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave.,
Willoughy, OH 44094) Volume(issue)/page/year: -,C115,1991
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 52500 ug/kg/30D-C
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
Liver - changes in liver weight
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - transaminases
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
36,76,1990
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 13620 mg/kg/61W-C
TOXIC EFFECTS :
Blood - methemoglobinemia-carboxyhemoglobin
Blood - changes in erythrocyte (RBC) count
Blood - changes in leukocyte (WBC) count
REFERENCE :
FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House,
Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year:
31,285,1993
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 90 mg/m3/4H/60D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - proteinuria
Blood - changes in spleen
Endocrine - changes in thyroid weight
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 34(6),27,1969
** TUMORIGENIC DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 153 gm/kg/78W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Lungs, Thorax, or Respiration - 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
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 360 mg/kg
SEX/DURATION : female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 49(8),83,1984
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 1250 mg/kg
SEX/DURATION : female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
BECTA6 Bulletin of Environmental Contamination and Toxicology.
(Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ
07094) V.1- 1966- Volume(issue)/page/year: 22,522,1979
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE : 1935 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 - Effects on Embryo or Fetus - fetal death
Reproductive - Specific Developmental Abnormalities - eye/ear
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 : Mutation in microorganisms
TEST SYSTEM : Bacteria - Salmonella typhimurium
DOSE/DURATION : 3 ug/plate
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 58,353,1978
TYPE OF TEST : DNA inhibition
ROUTE OF EXPOSURE : Oral
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 1 gm/kg
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 58,353,1978
*** REVIEWS ***
ACGIH TLV-Not classifiable as a human carcinogen
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
ACGIH TLV-TWA 10 mg/m3
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
TOXICOLOGY REVIEW
CNDQA8 Cahiers de Nutrition et de Dietetique. (Editions Meteore, 42, rue du
Louvre, 75001 Paris, France) V.1- 1966- Volume(issue)/page/year:
10(3),43,1975
TOXICOLOGY REVIEW
DTTIAF Deutsche Tieraerztliche Wochenschrift. (Hanover, Fed. Rep. Ger.)
V.1-77, 1893-1970. Volume(issue)/page/year: 80,485,1973
*** 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
*** OCCUPATIONAL EXPOSURE LIMITS ***
OEL-AUSTRALIA:TWA 10 mg/m3 JAN 1993
OEL-BELGIUM:TWA 10 mg/m3 JAN 1993
OEL-DENMARK:TWA 5 mg/m3 JAN 1993
OEL-FINLAND:TWA 10 mg/m3;STEL 20 mg/m3 JAN 1993
OEL-FRANCE:TWA 10 mg/m3 JAN 1993
OEL-THE NETHERLANDS:TWA 10 mg/m3 JAN 1993
OEL-SWITZERLAND:TWA 10 mg/m3 JAN 1993
OEL-UNITED KINGDOM:TWA 10 mg/m3 JAN 1993
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO DIURON-air:10H TWA 10 mg/m3
REFERENCE :
NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
Health, Education, and Welfare, Reports and Memoranda.
Volume(issue)/page/year: DHHS #92-100,1992
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - M0785
No. of Facilities: 120 (estimated)
No. of Industries: 2
No. of Occupations: 2
No. of Employees: 374 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - M0785
No. of Facilities: 75 (estimated)
No. of Industries: 8
No. of Occupations: 12
No. of Employees: 4216 (estimated)
No. of Female Employees: 264 (estimated)
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Negative: S cerevisiae gene conversion
EPA TSCA Section 8(b) CHEMICAL INVENTORY
On EPA IRIS database
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
*** END OF RECORD ***