86-50-0
Product Name:
AZINPHOS-METHYL
Formula:
C10H12N3O3PS2
Synonyms:
Guthion;Methyltriazotin
Inquiry
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.