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86-50-0

86-50-0 structural image
Product Name: AZINPHOS-METHYL
Formula: C10H12N3O3PS2
Synonyms: Guthion;Methyltriazotin
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Azinphos methyl is a colorless brown, waxy or white crystalline solid dissolved in a liquid carrier. It is used as a pesticide. It is added to water to create a water emulsifiable liquid. It is toxic by inhalation, skin absorption, and/or ingestion. It is heavier than and insoluble in water. In case of damage to, leaking from containers of this material contact CHEMTREC, 800-424-9300.
Color/Form Yellowish crystals
Odor Odorless
Boiling Point Decomposes (NTP, 1992)
Melting Point 163 to 165 °F (EPA, 1998)
Solubility less than 1 mg/mL at 66 °F (NTP, 1992)
Density 1.44 at 68 °F (EPA, 1998) - Denser than water; will sink
Vapor Pressure Negligible at 20C (EPA, 1998)
LogP log Kow = 2.75
Stability/Shelf Life Solutions in ethanol and propylene glycol are stable for at least 3 weeks.
Decomposition ... Decomposes at elevated temperatures.
Corrosivity Non-corrosive
Odor Threshold Detection: 0.0002 mg/kg water
Refractive Index Index of refraction = 1.6115 at 76 °C/D
Collision Cross Section 167.52 Ų [M+Na]+
Kovats Retention Index 2521.6 2464 2464.2 2494.1
Other Experimental Properties Recrystallizable from methanol and isopropanol
Chemical Classes Pesticides -> Organophosphate Insecticides

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Skull and Crossbones
Acute Toxicity
GHS06

Environment
GHS09
GHS Hazard Statements H311:Acute toxicity,dermal
H317:Sensitisation, Skin
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.

COMPUTED DESCRIPTORS

Molecular Weight 317.3 g/mol
XLogP3 2.8
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 7
Rotatable Bond Count 5
Exact Mass 317.00577060 g/mol
Monoisotopic Mass 317.00577060 g/mol
Topological Polar Surface Area 121 Ų
Heavy Atom Count 19
Formal Charge 0
Complexity 413
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Guthion, also called azinphos-methyl, is an organophosphorous pesticide that was used on many crops, especially apples, pears, cherries, peaches, almonds, and cotton. Many of its former uses have been cancelled by the EPA, and its few remaining uses are currently in the process of being phased out. Guthion is a synthetic substance, it does not occur naturally. Pure guthion is a colorless to white odorless crystalline solid that melts at about 72-74ºC (162-165ºF). Technical-grade guthion is a cream to yellow-brown granular solid. Guthion is poorly soluble in water.