Bis(2-ethylhexyl) phosphite
Also known as: Di(2-ethylhexyl) phosphite, Dioctyl phosphite, Bis(2-ethylhexyl) hydrogen phosphite, Phosphorous acid bis(2-ethylhexyl) ester, Bis(2-ethylhexyl) phosphonate, Chelex H8, NSC 2664
Bis(2-ethylhexyl) phosphite (CAS 3658-48-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H34O3P and a molecular weight of 306.421 g/mol. Key properties include a boiling point of 372.9±11.0 °C at 760 mmHg, a density of 0.916 g/mL at 25 °C(lit.) and a flash point of 198.8±13.5 °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 Nov 2, 2026.
- CAS No.
- 3658-48-8
- Jingsj CID
- J-7281-1
- Molecular Formula
- C16H34O3P
- Molecular Weight
- 306.421 g/mol
- Category
- Organic Acids
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 372.9±11.0 °C at 760 mmHg |
|---|---|
| Density | 0.916 g/mL at 25 °C(lit.) |
| Flash Point | 198.8±13.5 °C |
| Exact Mass | 306.232391 |
| PSA | 59.00000 |
| LogP | 5.76 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | n20/D 1.442(lit.) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2920909090 |
|---|---|
| Summary | 2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Bis(2-ethylhexyl) phosphite?
The CAS number of Bis(2-ethylhexyl) phosphite is 3658-48-8.
What are the molecular formula and molecular weight of Bis(2-ethylhexyl) phosphite?
Bis(2-ethylhexyl) phosphite has molecular formula C16H34O3P and molecular weight 306.421 g/mol.
Is Bis(2-ethylhexyl) phosphite hazardous?
Bis(2-ethylhexyl) phosphite 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 Bis(2-ethylhexyl) phosphite?
For Bis(2-ethylhexyl) phosphite, Upstream Products: 2-Ethylhexanol, Diethyl phosphite; Downstream Products: Bis(2-ethylhexyl) phosphate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bis(2-ethylhexyl) phosphite (CAS 3658-48-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7281-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.