Phosphorous acid, tripropyl ester
Also known as: Tripropyl phosphite, Propyl phosphite, tri-, NSC 157378, AI3-18564, Phosphorous acid tripropyl ester, tri-n-propyl phosphite
Phosphorous acid, tripropyl ester (CAS 923-99-9) 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 208.23500 g/mol. Key properties include a boiling point of 205.7ºC at 760mmHg and a flash point of 90ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 923-99-9
- Jingsj CID
- J-1370220-0
- Molecular Formula
- C9H21O3P
- Molecular Weight
- 208.23500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 205.7ºC at 760mmHg |
|---|---|
| Flash Point | 90ºC |
| Exact Mass | 208.12300 |
| PSA | 41.28000 |
| LogP | 3.49310 |
Customs & Trade Information
| HS Code | 2920901900 |
|---|---|
| Summary | 2920901900 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 Phosphorous acid, tripropyl ester?
The CAS number of Phosphorous acid, tripropyl ester is 923-99-9.
What are the molecular formula and molecular weight of Phosphorous acid, tripropyl ester?
Phosphorous acid, tripropyl ester has molecular formula C9H21O3P and molecular weight 208.23500 g/mol.
What are the upstream and downstream products of Phosphorous acid, tripropyl ester?
For Phosphorous acid, tripropyl ester, Upstream Products: 1-Propanol, Dipropyl phosphite, Triphenyl phosphite; Downstream Products: Tripropyl phosphate, 1-Chloropropane, Dipropyl chlorophosphate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phosphorous acid, tripropyl ester (CAS 923-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1370220-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.