Butyl isovalerate
Also known as: Butyl 3-methylbutanoate, 1-Butyl isovalerate, Butanoic acid, 3-methyl-, butyl ester, Butyl isopentanoate, Isovaleric Acid Butyl Ester, Isovaleric acid, butyl ester, n-Butyl isovalerate, n-Butyl isopentanoate, MFCD00048775, UNII-4UX6V9QM2J, EINECS 203-654-7
Butyl isovalerate (CAS 109-19-3) 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 boiling point of 176.5±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 59.4±8.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 109-19-3
- Jingsj CID
- J-12412-9
- Molecular Formula
- C9H18O2
- Molecular Weight
- 158.238 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 176.5±8.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 59.4±8.3 °C |
| Exact Mass | 158.130676 |
| PSA | 26.30000 |
| LogP | 3.18 |
| Vapor Pressure | 1.1±0.3 mmHg at 25°C |
| Refractive Index | 1.417 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 Butyl isovalerate?
The CAS number of Butyl isovalerate is 109-19-3.
What are the molecular formula and molecular weight of Butyl isovalerate?
Butyl isovalerate has molecular formula C9H18O2 and molecular weight 158.238 g/mol.
Is Butyl isovalerate hazardous?
Butyl isovalerate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Butyl isovalerate?
For Butyl isovalerate, Upstream Products: Isovaleric acid, 1-Butanol, 3-Methylbutanoyl chloride; Downstream Products: (R)-2-[3-(3-Methoxypropoxy)-4-methoxybenzyl]-3-methylbutan-1-ol, (R)-2-[4-methoxy-3-(3-methoxypropoxy)benzyl]-3-methylbutanoic acid, tert-Butyl ((1S,3S)-1-((2S,4S)-4-isopropyl-5-oxotetrahydrofuran-2-yl)-3-(4-methoxy-3-(3-methoxypropoxy)benzyl)-4-methylpentyl)carbamate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Butyl isovalerate (CAS 109-19-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12412-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.