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3,5,5-Trimethylhexanoic acid

Also known as: 3,5,5-Trimethylhexanoic acid, TMHA, 3,5,5-Trimethyl-n-hexanoic acid, Hexanoic acid, 3,5,5-trimethyl-, iso-nonanoic acid (common name for mixture)

3,5,5-Trimethylhexanoic acid (CAS 3302-10-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H18O2 and a molecular weight of 158.238 g/mol. Key properties include a melting point of -70°C, a boiling point of 243.3±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 109.4±9.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3302-10-1
Jingsj CID
J-35280-8
Molecular Formula
C9H18O2
Molecular Weight
158.238 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-70°C
Boiling Point243.3±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point109.4±9.8 °C
Exact Mass158.130676
PSA37.30000
LogP2.88
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.438

Frequently Asked Questions

What is the CAS number of 3,5,5-Trimethylhexanoic acid?

The CAS number of 3,5,5-Trimethylhexanoic acid is 3302-10-1.

What are the molecular formula and molecular weight of 3,5,5-Trimethylhexanoic acid?

3,5,5-Trimethylhexanoic acid has molecular formula C9H18O2 and molecular weight 158.238 g/mol.

What are the upstream and downstream products of 3,5,5-Trimethylhexanoic acid?

For 3,5,5-Trimethylhexanoic acid, Upstream Products: 3,5,5-Trimethylhexanal, 2,4,4-Trimethylpent-1-ene, 3,5,5-Trimethyl-1-hexanol; Downstream Products: 3,5,5-Trimethylhexanoyl chloride, Ethyl 3,5,5-trimethylhexanoate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,5,5-Trimethylhexanoic acid (CAS 3302-10-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35280-8 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.