Pivalic acid
Also known as: 2,2-Dimethylpropanoic acid, Trimethylacetic acid, Neopentanoic acid, tert-Pentanoic acid, 2,2-Dimethylpropionic acid
Pivalic acid (CAS 75-98-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10O2 and a molecular weight of 102.132 g/mol. Key properties include a melting point of 32-35 °C(lit.), a boiling point of 163-164 ºC, a density of 0.905 and a flash point of 63 ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 75-98-9
- Jingsj CID
- J-1354541-3
- Molecular Formula
- C5H10O2
- Molecular Weight
- 102.132 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 32-35 °C(lit.) |
|---|---|
| Boiling Point | 163-164 ºC |
| Density | 0.905 |
| Flash Point | 63 ºC |
| Exact Mass | 102.068077 |
| PSA | 37.30000 |
| LogP | 0.94 |
| Additional Property | 3.6 (vs air) |
| Vapor Pressure | 0.9±0.6 mmHg at 25°C |
| Refractive Index | 1.420 |
| Additional Property | 25 g/L (20 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H314 — Causes severe skin burns and eye damage
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 Pivalic acid?
The CAS number of Pivalic acid is 75-98-9.
What are the molecular formula and molecular weight of Pivalic acid?
Pivalic acid has molecular formula C5H10O2 and molecular weight 102.132 g/mol.
Is Pivalic acid hazardous?
Pivalic acid has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Pivalic acid?
For Pivalic acid, Upstream Products: Pinacolone, Trimethylacetaldehyde, Neopentyl alcohol; Downstream Products: Trimethylacetic anhydride, 2-tert-Butyl-1,4-benzoquinone, Methyl 4,4-dimethyl-3-oxopentanoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pivalic acid (CAS 75-98-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354541-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.