Potassium isobutyrate
Also known as: Potassium 2-methylpropanoate, Isobutyric acid potassium salt, 2-Methylpropionic acid potassium salt, 2-Methylpropanoic acid potassium salt, Propanoic acid, 2-methyl-, potassium salt, Potassium 2-methylpropionate, Potassium dimethylacetate
Potassium isobutyrate (CAS 19455-20-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H7KO2 and a molecular weight of 126.19500 g/mol. Key properties include a boiling point of 155.2ºC at 760mmHg, a density of 0.983g/cm3 and a flash point of 58.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 19455-20-0
- Jingsj CID
- J-1319639-9
- Molecular Formula
- C4H7KO2
- Molecular Weight
- 126.19500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 155.2ºC at 760mmHg |
|---|---|
| Density | 0.983g/cm3 |
| Flash Point | 58.2ºC |
| Exact Mass | 126.00800 |
| PSA | 40.13000 |
| Vapor Pressure | 1.63mmHg at 25°C |
Customs & Trade Information
| HS Code | 2915900090 |
|---|---|
| Summary | 2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Potassium isobutyrate?
The CAS number of Potassium isobutyrate is 19455-20-0.
What are the molecular formula and molecular weight of Potassium isobutyrate?
Potassium isobutyrate has molecular formula C4H7KO2 and molecular weight 126.19500 g/mol.
What are the upstream and downstream products of Potassium isobutyrate?
For Potassium isobutyrate, Upstream Products: Isobutyric acid, Potassium methacrylate; Downstream Products: 2-Bromo-2-methylpropionic acid, Chloromethyl isobutyrate, Ciclesonide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Potassium isobutyrate (CAS 19455-20-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1319639-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.