Methyl diphenylphosphinite
Also known as: Methoxydiphenylphosphine, Diphenylmethoxyphosphine, Diphenylphosphinous acid methyl ester, Methoxydiphenylphosphane, methoxy(diphenyl)phosphane, NSC 171167, Phosphinous acid, P,P-diphenyl-, methyl ester, AURORA KA-1329
Methyl diphenylphosphinite (CAS 4020-99-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H13OP and a molecular weight of 216.215 g/mol. Key properties include a boiling point of 299.9±23.0 °C at 760 mmHg, a density of 1.078 g/mL at 25 °C(lit.) and a flash point of 163.7±22.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4020-99-9
- Jingsj CID
- J-1504292-9
- Molecular Formula
- C13H13OP
- Molecular Weight
- 216.215 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 299.9±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.078 g/mL at 25 °C(lit.) |
| Flash Point | 163.7±22.9 °C |
| Exact Mass | 216.070404 |
| PSA | 22.82000 |
| LogP | 4.77 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | n20/D 1.604(lit.) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2909309090 |
|---|---|
| Summary | 2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Methyl diphenylphosphinite?
The CAS number of Methyl diphenylphosphinite is 4020-99-9.
What are the molecular formula and molecular weight of Methyl diphenylphosphinite?
Methyl diphenylphosphinite has molecular formula C13H13OP and molecular weight 216.215 g/mol.
Is Methyl diphenylphosphinite hazardous?
Methyl diphenylphosphinite has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Methyl diphenylphosphinite?
For Methyl diphenylphosphinite, Upstream Products: Methanol, Chlorodiphenylphosphine, Ethyldiphenylphosphinate; Downstream Products: Methanol, Methyl nitrite, 2,2'-Bipyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl diphenylphosphinite (CAS 4020-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504292-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.