Triisopropyl phosphite
Also known as: Phosphorous acid triisopropyl ester, Phosphorous acid tris(1-methylethyl) ester, Triisopropoxyphosphine, Tri-2-propyl phosphite, Tris(propan-2-yl) phosphite, Medronic acid impurity A, Phosphite isopropyl ester, Phosphorus triisopropoxide, Phosphorus isopropoxide
Triisopropyl phosphite (CAS 116-17-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H21O3P and a molecular weight of 208.235 g/mol. Key properties include a boiling point of 181.4±0.0 °C at 760 mmHg, a density of 0.914 and a flash point of 67.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 116-17-6
- Jingsj CID
- J-43160-7
- Molecular Formula
- C9H21O3P
- Molecular Weight
- 208.235 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 181.4±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.914 |
| Flash Point | 67.8±0.0 °C |
| Exact Mass | 208.122833 |
| PSA | 41.28000 |
| LogP | 1.71 |
| Vapor Pressure | 1.2±0.3 mmHg at 25°C |
| Refractive Index | n20/D 1.411(lit.) |
| Additional Property | Insoluble |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
Frequently Asked Questions
What is the CAS number of Triisopropyl phosphite?
The CAS number of Triisopropyl phosphite is 116-17-6.
What are the molecular formula and molecular weight of Triisopropyl phosphite?
Triisopropyl phosphite has molecular formula C9H21O3P and molecular weight 208.235 g/mol.
Is Triisopropyl phosphite hazardous?
Triisopropyl phosphite has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation.
What are the upstream and downstream products of Triisopropyl phosphite?
For Triisopropyl phosphite, Upstream Products: Isopropanol, cyclohexane, N,N-Dimethylaniline; Downstream Products: 2-Bromopropane, tetraisopropyl dichloromethylene diphosphonate, Trimethylsilanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triisopropyl phosphite (CAS 116-17-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43160-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.