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Triisobutyl phosphate

Also known as: TIBP, Triisobutylphosphat, Tris(2-methylpropyl) phosphate, Phosphoric acid, tris(2-methylpropyl) ester, isobutylphosphate, tri-isobutylphosphate

Triisobutyl phosphate (CAS 126-71-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H27O4P and a molecular weight of 266.314 g/mol. Key properties include a boiling point of 261.2±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 125.8±38.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126-71-6
Jingsj CID
J-14476-3
Molecular Formula
C12H27O4P
Molecular Weight
266.314 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point261.2±8.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point125.8±38.8 °C
Exact Mass266.164703
PSA54.57000
LogP3.71
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.427

Customs & Trade Information

HS Code2919900090
Summary2919900090 other phosphoric esters and their salts, including lactophosphates; their halogenated, sulphonated, nitrated or nitrosated derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。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 Triisobutyl phosphate?

The CAS number of Triisobutyl phosphate is 126-71-6.

What are the molecular formula and molecular weight of Triisobutyl phosphate?

Triisobutyl phosphate has molecular formula C12H27O4P and molecular weight 266.314 g/mol.

What are the upstream and downstream products of Triisobutyl phosphate?

For Triisobutyl phosphate, Upstream Products: 2-Methyl-1-propanol, Triisobutyl phosphite; Downstream Products: 5-Chloroisatoic anhydride, 3-Chloroisatoic anhydride, Isobutyl dihydrogen 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. "Triisobutyl phosphate (CAS 126-71-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14476-3 (accessed 2026-11-09).

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