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Triphenyl phosphite

Also known as: Phosphorous acid triphenyl ester, Phosphorous acid, triphenyl ester, TPP, UNII-9P45GRD24X, MFCD00002080, EINECS 202-908-4, Advance TPP, Doverphos 10, Doverphos 10-HR, EFED, Lankromark LE65, adkstabtpp, advancetpp, jp360, mellite310, p36, westontpp, TPO

Triphenyl phosphite (CAS 101-02-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H15O3P and a molecular weight of 310.284 g/mol. Key properties include a melting point of 22-24 °C(lit.), a boiling point of 360.0±11.0 °C at 760 mmHg, a density of 1.184 g/mL at 25 °C(lit.) and a flash point of 218.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
101-02-0
Jingsj CID
J-47570-7
Molecular Formula
C18H15O3P
Molecular Weight
310.284 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point22-24 °C(lit.)
Boiling Point360.0±11.0 °C at 760 mmHg
Density1.184 g/mL at 25 °C(lit.)
Flash Point218.3±0.0 °C
Exact Mass310.075867
PSA41.28000
LogP7.43
Additional Property10.7 (vs air)
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Indexn20/D 1.59(lit.)
Additional Propertyinsoluble

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2920901900
Summary2920901900 VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Triphenyl phosphite?

The CAS number of Triphenyl phosphite is 101-02-0.

What are the molecular formula and molecular weight of Triphenyl phosphite?

Triphenyl phosphite has molecular formula C18H15O3P and molecular weight 310.284 g/mol.

Is Triphenyl phosphite hazardous?

Triphenyl phosphite has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of Triphenyl phosphite?

For Triphenyl phosphite, Upstream Products: Phenol, Methanol, Phosphorus trichloride; Downstream Products: Diphenyl phosphite, Phenol, Triphenyl 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. "Triphenyl phosphite (CAS 101-02-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47570-7 (accessed 2026-11-09).

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