Tributyl phosphate
Also known as: TBP, Tri-n-butyl phosphate, Phosphoric acid, tributyl ester, Butyl phosphate, n-Butyl phosphate
Tributyl phosphate (CAS 126-73-8) 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 melting point of -79 °C, a boiling point of 288.3±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 193.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 126-73-8
- Jingsj CID
- J-14471-8
- Molecular Formula
- C12H27O4P
- Molecular Weight
- 266.314 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -79 °C |
|---|---|
| Boiling Point | 288.3±8.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 193.3±0.0 °C |
| Exact Mass | 266.164703 |
| PSA | 54.57000 |
| LogP | 4.26 |
| Additional Property | 9.2 (vs air) |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.430 |
| Additional Property | 0.6 g/100 mL |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H351 — Suspected of causing cancer
- H412 — Harmful to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2919900090 |
|---|---|
| Summary | 2919900090 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 Tributyl phosphate?
The CAS number of Tributyl phosphate is 126-73-8.
What are the molecular formula and molecular weight of Tributyl phosphate?
Tributyl phosphate has molecular formula C12H27O4P and molecular weight 266.314 g/mol.
Is Tributyl phosphate hazardous?
Tributyl phosphate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H351 — Suspected of causing cancer.
What are the upstream and downstream products of Tributyl phosphate?
For Tributyl phosphate, Upstream Products: 1-Butanol, Tributyl phosphite, Dibutyl phosphite; Downstream Products: 3-(Dibutylamino)phenol, 1-Phenyl-1-pentanol, Triethylamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tributyl phosphate (CAS 126-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14471-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.