Cyanophos
Also known as: O,O-Dimethyl O-(4-cyanophenyl) phosphorothioate, O-4-Cyanophenyl O,O-dimethyl phosphorothioate, O,O-Dimethyl O-(p-cyanophenyl) phosphorothioate, O-(4-Cyanophenyl) O,O-dimethyl phosphorothioate, 4-(Dimethoxyphosphinothioyloxy)benzonitrile, BAY 34727, CYANOX, CYAP, Cynock, Sumitomo S 4084, May & baker S 4084, Caswell No. 268A, ai3-25675
Cyanophos (CAS 2636-26-2) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H10NO3PS and a molecular weight of 243.219 g/mol. Key properties include a melting point of 14-15ºC, a boiling point of 322.3±44.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 148.7±28.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2636-26-2
- Jingsj CID
- J-47281-2
- Molecular Formula
- C9H10NO3PS
- Molecular Weight
- 243.219 g/mol
- Category
- Nitrogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 14-15ºC |
|---|---|
| Boiling Point | 322.3±44.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 148.7±28.4 °C |
| Exact Mass | 243.011902 |
| PSA | 93.38000 |
| LogP | 2.71 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.554 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2926909032 |
|---|---|
| Summary | 2926909032 o-(4-cyanophenyl) o,o-dimethyl 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:30.0% |
Frequently Asked Questions
What is the CAS number of Cyanophos?
The CAS number of Cyanophos is 2636-26-2.
What are the molecular formula and molecular weight of Cyanophos?
Cyanophos has molecular formula C9H10NO3PS and molecular weight 243.219 g/mol.
Is Cyanophos hazardous?
Cyanophos has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H410 — Very toxic to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Cyanophos (CAS 2636-26-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47281-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.