2-Heptenoic acid

Also known as: (2E)-2-Heptenoic acid, 2-HEPTENOIC ACID, HEPT-2-ENOIC ACID, Hept-2-ensaeure, RARECHEM AL BK 0163, TRANS-2-HEPTENOIC ACID

2-Heptenoic acid (CAS 18999-28-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H12O2 and a molecular weight of 128.16900 g/mol. Key properties include a boiling point of 226.6ºC at 760 mmHg, a density of 0.968 g/cm3 and a flash point of 133.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 18999-28-5
Jingsj CID: J-29307-2
Molecular Formula: C₇H₁₂O₂
Molecular Weight: 128.16900 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	226.6ºC at 760 mmHg
Density	0.968 g/cm3
Flash Point	133.4ºC
Exact Mass	128.08400
PSA	37.30000
LogP	1.81740
Vapor Pressure	0.0295mmHg at 25°C
Refractive Index	1.457

Customs & Trade Information

HS Code	2916190090
Summary	2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Heptenoic acid?

The CAS number of 2-Heptenoic acid is 18999-28-5.

What are the molecular formula and molecular weight of 2-Heptenoic acid?

2-Heptenoic acid has molecular formula C7H12O2 and molecular weight 128.16900 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Heptenoic acid (CAS 18999-28-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29307-2 (accessed 2026-11-09).

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