*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : UR6125000
CHEMICAL NAME : 3(2H)-Pyridazinone, 5-amino-4-chloro-2-phenyl-
CAS REGISTRY NUMBER : 1698-60-8
OTHER CAS REGISTRY NOS. : 58858-18-7
BEILSTEIN REFERENCE NO. : 0397241
REFERENCE : 5-25-14-00196 (Beilstein Handbook Reference)
LAST UPDATED : 199706
DATA ITEMS CITED : 26
MOLECULAR FORMULA : C10-H8-Cl-N3-O
MOLECULAR WEIGHT : 221.66
WISWESSER LINE NOTATION : T6NNVJ BR& DG EZ
COMPOUND DESCRIPTOR : Agricultural Chemical
Mutagen
Reproductive Effector
Primary Irritant
SYNONYMS/TRADE NAMES :
* 5-Amino-4-chloro-2,3-dihydro-3-oxo-2-phenylpyridazine
* 5-Amino-4-chloro-2-phenylpyridazin-3(2H)-one
* 5-Amino-4-chloro-2-phenyl-3(2H)-pyridazinone
* BAS 13033
* BAS 1191611
* Burex
* Chloridazon
* Chloridazone
* Curbetan
* 1-Fenyl-4-amino-5-chlor-6-pyridazinon
* HS 119-1
* PCA
* Phenazon
* Phenosane
* 1-Phenyl-4-amino-5-chloropyridazin-6-one
* 1-Phenyl-4-amino-5-chloropyridaz-6-one
* 1-Phenyl-4-amino-5-chloro-6-pyridazone
* 1-Phenyl-4-amino-5-chloropyridazone-6
* 1-Phenyl-4-amino-5-chlorpyridazon-(6)
* 1-Phenyl-4-amino-5-chlorpyridaz-6-one
* Pyramin
* Pyramine
* Pyramin RB
* Pyrazon
* Suzon
*** HEALTH HAZARD DATA ***
** SKIN/EYE IRRITATION DATA **
TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 500 mg/24H
REACTION SEVERITY : Mild
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,868,1986
** ACUTE TOXICITY DATA **
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 647 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year:
7,299,1986
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >30800 mg/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JFAN "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd,
eds., Nottingham, Royal Soc. of Chemistry, 1983-86 Volume(issue)/page/year:
A080,1985
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 :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 194 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1410 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 598 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 235 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1205 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 2 gm/kg
TOXIC EFFECTS :
Behavioral - tremor
Behavioral - muscle contraction or spasticity
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and
Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
V.1-36, 1957-1992. For publisher information, see MTPEEI
Volume(issue)/page/year: 23(8),48,1979
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 2500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JFAN "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd,
eds., Nottingham, Royal Soc. of Chemistry, 1983-86 Volume(issue)/page/year:
A080,1985
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 493 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Unreported
SPECIES OBSERVED : Mammal - species unspecified
DOSE/DURATION : 2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AGKYAU Agrokhimiya. Agricultural Chemistry. (V/O Mezhdunarodnaya Kniga,
113095 Moscow, USSR) No.1- 1964- Volume(issue)/page/year: (5),142,1977
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 162 gm/kg/2Y-C
TOXIC EFFECTS :
Musculoskeletal - other changes
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 30 gm/kg/30D-I
TOXIC EFFECTS :
Related to Chronic Data - death
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: 32,333,1969
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 6006 mg/kg/13W-C
TOXIC EFFECTS :
Liver - changes in liver weight
Endocrine - changes in thyroid weight
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - transaminases
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 10 mg/m3/4H/17W-I
TOXIC EFFECTS :
Liver - other changes
Blood - changes in other cell count (unspecified)
Blood - changes in leukocyte (WBC) count
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and
Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
V.1-36, 1957-1992. For publisher information, see MTPEEI
Volume(issue)/page/year: 23(8),48,1979
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 142 gm/kg/92W-C
TOXIC EFFECTS :
Liver - changes in liver weight
REFERENCE :
NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of
Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170,
Japan) V.1- 1976- Volume(issue)/page/year: 17,S171,1992
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 10 mg/m3/4H/17W-I
TOXIC EFFECTS :
Liver - other changes
Blood - changes in other cell count (unspecified)
Blood - changes in leukocyte (WBC) count
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and
Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
V.1-36, 1957-1992. For publisher information, see MTPEEI
Volume(issue)/page/year: 23(8),48,1979
** REPRODUCTIVE DATA **
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE : 1 mg/m3/4H
SEX/DURATION : male 72 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material,
sperm morphology, motility, and count)
Reproductive - Paternal Effects - testes, epididymis, sperm duct
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 50(8),88,1985
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - hamster
DOSE : 175 mg/kg
SEX/DURATION : female 8 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
REFERENCE :
ANREAK Anatomical Record. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY
10003) V.1- 1906/08- Volume(issue)/page/year: 175,503,1973
** MUTATION DATA **
TYPE OF TEST : Sex chromosome loss and nondisjunction
ROUTE OF EXPOSURE : Inhalation
TEST SYSTEM : Rodent - rat
DOSE/DURATION : 50 mg/m3
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 50(1),80,1985
*** REVIEWS ***
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
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Negative: S cerevisiae gene conversion
EPA TSCA Section 8(b) CHEMICAL INVENTORY
*** END OF RECORD ***