Pyridaben

Names

[ Name ]:
Pyridaben

[Synonym ]:
Sanmite
NCI 129
2-tert-butyl-5-{[(4-tert-butylphenyl)methyl]sulfanyl}-4-chloropyridazin-3(2H)-one
2-tert-butyl-5-(4-tert-butylbenzylthio)-4-chloropyridazin-3(2H)-one
4-chloro-2-(1,1-dimethylethyl)-5-[[[4-(1,1-dimethylethyl)phenyl]methyl]thio]-3(2H)-pyridazinone
MFCD00274601
4-chloro-2-(1,1-dimethylethyl)-5-(((4-(1,1-dimethylethyl)phenyl)methyl)thio)-3(2H)-pyridazinone
2-tert-butyl-4-chloro-5-(4-tert-butyl-benzylthio)-3(2H)-pyridazinone
2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one
2-t-butyl-5-(p-t-butylbenzylthio)-4-chloro-3(2H)-pyridazinone
Pyridaben [ISO]
Pyridaben
EINECS 405-700-3

Biological Activity

[Description]:

Pyridaben is a METI acaricide that inhibits mitochondrial electron transport at complex I (METI; Ki = 0.36 nmol/mg protein in rat brain mitochondria). Pyridaben is active against a variety of mites, inducing 100% mortality of C. malaccensis, D. farina, and T. putrescentia when administered via filter paper contact at doses of 25, 100, and 200 mg/m3, respectively.

Chemical & Physical Properties

[ Density]:
1.12 g/cm3

[ Boiling Point ]:
429.9ºC at 760 mmHg

[ Melting Point ]:
111-112ºC

[ Molecular Formula ]:
C₁₉H₂₅ClN₂OS

[ Molecular Weight ]:
364.93300

[ Flash Point ]:
213.8ºC

[ Exact Mass ]:
364.13800

[ PSA ]:
60.19000

[ LogP ]:
5.24150

[ Index of Refraction ]:
1.564

[ Storage condition ]:
0-6°C

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UR6149000

CHEMICAL NAME :: 3(2H)-Pyridazinone, 4-chloro-2-(1,1-dimethylethyl)-5-(((4-(1,1-dimethylet hyl)phenyl)methyl) thio)-

CAS REGISTRY NUMBER :: 96489-71-3

LAST UPDATED :: 199606

DATA ITEMS CITED :: 14

MOLECULAR FORMULA :: C19-H25-Cl-N2-O-S

MOLECULAR WEIGHT :: 364.97

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 :: 570 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - muscle weakness Lungs, Thorax, or Respiration - respiratory depression

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: 19,S243,1994

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 620 mg/m3

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AGJAEP Agrochemcicals Japan. (Japan Plant Protection Association, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.62- 1993- Volume(issue)/page/year: (63),12,1993

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

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

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C269,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 58100 ug/kg

TOXIC EFFECTS :: Behavioral - muscle weakness Lungs, Thorax, or Respiration - respiratory depression Skin and Appendages - hair

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: 19,S243,1994

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 205 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - respiratory depression Skin and Appendages - hair

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: 19,S243,1994

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 :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AGJAEP Agrochemcicals Japan. (Japan Plant Protection Association, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) No.62- 1993- Volume(issue)/page/year: (63),12,1993 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3494 mg/kg/2Y-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Nutritional and Gross Metabolic - weight loss or decreased weight gain

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: 19,S243,1994

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 mg/m3/6H/4W-I

TOXIC EFFECTS :: Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) 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: 19,S243,1994

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 983 mg/kg/13W-C

TOXIC EFFECTS :: Behavioral - food intake (animal) Nutritional and Gross Metabolic - weight loss or decreased weight gain

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: 19,S243,1994

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5242 mg/kg/78W-C

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain

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: 19,S243,1994

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 364 mg/kg/13W-I

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Nutritional and Gross Metabolic - weight loss or decreased weight gain

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: 19,S243,1994

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 1484 mg/kg/53W-I

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain

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: 19,S243,1994 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 300 mg/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Maternal Effects - other effects Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

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: 19,S203,1994

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 210 mg/kg

SEX/DURATION :: female 6-19 day(s) after conception

TOXIC EFFECTS :: Reproductive - Maternal Effects - other effects

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: 19,S203,1994

Safety Information

[ Symbol ]:

GHS06, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H301-H331-H410

[ Precautionary Statements ]:
P261-P273-P301 + P310-P311-P501

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges

[ Hazard Codes ]:
T:Toxic;N:Dangerousfortheenvironment;

[ Risk Phrases ]:
R23/25;R50/53

[ Safety Phrases ]:
S36/37-S45-S60-S61

[ RIDADR ]:
UN 3077

[ RTECS ]:
UR6149000

[ Packaging Group ]:
II

[ Hazard Class ]:
6.1(a)

[ HS Code ]:
2933399027

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2933399027

[ Summary ]:
2933399027 2-(tert-butyl)-5-((4-(tert-butyl)benzyl)thio)-4-chloropyridazin-3(2h)-one。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0%

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