Diethyl isocyanomethylphosphonate
异腈甲基磷酸二乙酯
Also known as: Diethoxyphosphinylmethyl isocyanide, Diethyl (isocyanomethyl)phosphonate, Isocyanomethylphosphonic acid diethyl ester, 1-[ethoxy(isocyanomethyl)phosphoryl]oxyethane, MFCD00042951, Diethyl isocyanomethylphosphonate 97%
Diethyl isocyanomethylphosphonate (CAS 41003-94-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H12NO3P and a molecular weight of 177.13800 g/mol. It is also known as Diethoxyphosphinylmethyl isocyanide, Diethyl (isocyanomethyl)phosphonate and Isocyanomethylphosphonic acid diethyl ester. Key properties include a boiling point of 84-87ºC0.1 mm Hg(lit.), a density of 1.105 g/mL at 25ºC(lit.) and a flash point of >230 °F. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 41003-94-5
- Jingsj CID
- J-40101-6
- Molecular Formula
- C6H12NO3P
- Chinese Name
- 异腈甲基磷酸二乙酯
- Molecular Weight
- 177.13800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 84-87ºC0.1 mm Hg(lit.) |
|---|---|
| Density | 1.105 g/mL at 25ºC(lit.) |
| Flash Point | >230 °F |
| Exact Mass | 177.05500 |
| PSA | 45.34000 |
| LogP | 1.36000 |
| Appearance | Liquid | Clear colorless to yellow |
| Refractive Index | n20/D 1.433(lit.) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Diethyl isocyanomethylphosphonate?
The CAS number of Diethyl isocyanomethylphosphonate is 41003-94-5.
What are the molecular formula and molecular weight of Diethyl isocyanomethylphosphonate?
Diethyl isocyanomethylphosphonate has molecular formula C6H12NO3P and molecular weight 177.13800 g/mol.
Is Diethyl isocyanomethylphosphonate hazardous?
Diethyl isocyanomethylphosphonate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diethyl isocyanomethylphosphonate (CAS 41003-94-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40101-6 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.