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Isazophos

Also known as: Isazofos, Miral, Brace, Triumph, CGA-12223, O-(5-chloro-1-isopropyl-1H-1,2,4-triazol-3-yl) O,O-diethyl phosphorothioate, O-[5-chloro-1-(1-methylethyl)-1H-1,2,4-triazol-3-yl] O,O-diethyl phosphorothioate, Phosphorothioic acid, O-5-chloro-1-(1-methylethyl)-1H-1,2,4-triazol-3-yl O,O-diethyl ester

Isazophos (CAS 42509-80-8) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H17ClN3O3PS and a molecular weight of 313.74100 g/mol. Key properties include a melting point of <25℃, a boiling point of 387.4ºC at 760 mmHg, a density of 1.4g/cm3 and a flash point of 188.1ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
42509-80-8
Jingsj CID
J-36125-7
Molecular Formula
C9H17ClN3O3PS
Molecular Weight
313.74100 g/mol
Category
Organohalogen Compounds
Last updated
11/3/2026

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Physicochemical Properties

Melting Point<25℃
Boiling Point387.4ºC at 760 mmHg
Density1.4g/cm3
Flash Point188.1ºC
Exact Mass313.04200
PSA100.30000
LogP3.83930
Appearanceliquid
Refractive Index1.573

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H317 — May cause an allergic skin reaction
  • H330 — Fatal if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2933990012
Summary2933990012. VAT:17.0%. Tax rebate rate:9.0%. Supervision conditions:S(import or export registration certificate for pesticides). MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Isazophos?

The CAS number of Isazophos is 42509-80-8.

What are the molecular formula and molecular weight of Isazophos?

Isazophos has molecular formula C9H17ClN3O3PS and molecular weight 313.74100 g/mol.

Is Isazophos hazardous?

Isazophos has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H317 — May cause an allergic skin reaction.

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

Last updated:

How to cite: Jingsj. "Isazophos (CAS 42509-80-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36125-7 (accessed 2026-11-07).

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