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Azinphos-methyl

Also known as: Guthion, Gusathion, Cotnion, Azinphos methyl, azinphosmethyl, Methyl guthion, Methyl-azinphos, methyltriazothion, O,O-dimethyl S-[(4-oxo-1,2,3-benzotriazin-3(4H)-yl)methyl] phosphorodithioate, S-3,4-dihydro-4-oxo-1,2,3-benzotriazin-3-ylmethyl O,O-dimethyl phosphorodithioate

Azinphos-methyl (CAS 86-50-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H12N3O3PS2 and a molecular weight of 317.32400 g/mol. Key properties include a melting point of 72-74ºC, a boiling point of 421.3ºC at 760 mmHg, a density of 1.51g/cm3 and a flash point of 208.6ºC. It is classified under GHS with signal word Danger and hazard statements H300, H330 — Fatal if inhaled and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
86-50-0
Jingsj CID
J-1138596-9
Molecular Formula
C10H12N3O3PS2
Molecular Weight
317.32400 g/mol
Category
Organic Compounds
Last updated
8/21/2026
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Physicochemical Properties

Melting Point72-74ºC
Boiling Point421.3ºC at 760 mmHg
Density1.51g/cm3
Flash Point208.6ºC
Exact Mass317.00600
PSA133.44000
LogP2.65010
Refractive Index1.678

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H300
  • H330 — Fatal if inhaled
  • H311 — Toxic in contact with skin
  • H317 — May cause an allergic skin reaction
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2933990011
Summary2933990011 o,o-diethyl o-quinoxalin-2-yl phosphorothioate。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%

Frequently Asked Questions

What is the CAS number of Azinphos-methyl?

The CAS number of Azinphos-methyl is 86-50-0.

What are the molecular formula and molecular weight of Azinphos-methyl?

Azinphos-methyl has molecular formula C10H12N3O3PS2 and molecular weight 317.32400 g/mol.

Is Azinphos-methyl hazardous?

Azinphos-methyl has GHS signal word Danger and hazard statements H300; H330 — Fatal if inhaled; H311 — Toxic in contact with skin.

What are the upstream and downstream products of Azinphos-methyl?

For Azinphos-methyl, Upstream Products: 3-(Chloromethyl)-1,2,3-benzotriazin-4(3H)-one, 1,2,3-Benzotriazin-4(3H)-one, 3-(hydroxymethyl)-1,2,3-benzotriazin-4(3H)-one.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Azinphos-methyl (CAS 86-50-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1138596-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.