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Isoamyl isovalerate

Also known as: 3-methylbutyl 3-methylbutanoate, isopentyl isovalerate, Apple oil, Isoamyl 3-methylbutanoate, Isoamyl 3-methylbutyrate, Isoamyl isopentanoate, Isoamyl valerianate, Isopentyl 3-methylbutanoate, Isopentyl 3-methylbutyrate, Isovaleric acid isoamyl ester, 3-Methylbutyl isovalerate, Butanoic acid, 3-methyl-, 3-methylbutyl ester

Isoamyl isovalerate (CAS 659-70-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H20O2 and a molecular weight of 172.265 g/mol. Key properties include a boiling point of 194.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 66.7±0.0 °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.
659-70-1
Jingsj CID
J-44431-5
Molecular Formula
C10H20O2
Molecular Weight
172.265 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point194.0±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point66.7±0.0 °C
Exact Mass172.146332
PSA26.30000
LogP3.53
Vapor Pressure0.5±0.3 mmHg at 25°C
Refractive Index1.420

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2915900090
Summary2915900090 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 Isoamyl isovalerate?

The CAS number of Isoamyl isovalerate is 659-70-1.

What are the molecular formula and molecular weight of Isoamyl isovalerate?

Isoamyl isovalerate has molecular formula C10H20O2 and molecular weight 172.265 g/mol.

Is Isoamyl isovalerate hazardous?

Isoamyl 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 Isoamyl isovalerate?

For Isoamyl isovalerate, Upstream Products: 3-Methyl-1-butanol, Methanol, tert-Butyl hypochlorite; Downstream Products: Isopentyl ether, Isovaleric acid, 1-bromo-3-methylbutane.

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

Last updated:

How to cite: Jingsj. "Isoamyl isovalerate (CAS 659-70-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44431-5 (accessed 2026-11-09).

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