Phosphorothioic acid,O-(1,6-dihydro-5-methoxy-1-methyl-6-oxo-4-pyridazinyl) O-ethylO-(1-methylethyl) ester

Modify Date: 2025-08-27 17:18:24

Phosphorothioic acid,O-(1,6-dihydro-5-methoxy-1-methyl-6-oxo-4-pyridazinyl) O-ethylO-(1-methylethyl) ester Structure
Phosphorothioic acid,O-(1,6-dihydro-5-methoxy-1-methyl-6-oxo-4-pyridazinyl) O-ethylO-(1-methylethyl) ester structure
Common Name Phosphorothioic acid,O-(1,6-dihydro-5-methoxy-1-methyl-6-oxo-4-pyridazinyl) O-ethylO-(1-methylethyl) ester
CAS Number 59631-23-1 Molecular Weight 322.31800
Density 1.31g/cm3 Boiling Point 366.4ºC at 760 mmHg
Molecular Formula C11H19N2O5PS Melting Point N/A
MSDS N/A Flash Point 175.4ºC

 Names

Name 5-[ethoxy(propan-2-yloxy)phosphinothioyl]oxy-4-methoxy-2-methylpyridazin-3-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.31g/cm3
Boiling Point 366.4ºC at 760 mmHg
Molecular Formula C11H19N2O5PS
Molecular Weight 322.31800
Flash Point 175.4ºC
Exact Mass 322.07500
PSA 113.71000
LogP 2.50430
Index of Refraction 1.544
InChIKey NHUNFKZUEHLVER-UHFFFAOYSA-N
SMILES CCOP(=S)(Oc1cnn(C)c(=O)c1OC)OC(C)C

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TF6502000
CHEMICAL NAME :
Phosphorothioic acid, O-(1,6-dihydro-5-methoxy-1-methyl-6-oxo-4-pyridazinyl ) O-ethyl O- (1-methylethyl) ester
CAS REGISTRY NUMBER :
59631-23-1
LAST UPDATED :
198910
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C11-H19-N2-O5-P-S
MOLECULAR WEIGHT :
322.35

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 :
3200 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PSSCBG Pesticide Science. (Blackwell Scientific Pub. Ltd., POB 88, Oxford, UK) V.1- 1970- Volume(issue)/page/year: 10,227,1979

 Synonyms

Phosphorothioic acid,O-(1,6-dihydro-5-methoxy-1-methyl-6-oxo-4-pyridazinyl) O-ethyl O-(1-methylethyl) ester
Pyridathion
Vuathion
Vuation
o-ethyl o-(5-methoxy-1-methyl-6-oxo-1,6-dihydropyridazin-4-yl) o-propan-2-yl phosphorothioate
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