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Tiglic acid

Also known as: (E)-2-Methyl-2-butenoic acid, (2E)-2-Methyl-2-butenoic acid, trans-2,3-Dimethylacrylic acid, trans-2-Methylcrotonic acid, 2,3-Dimethylacrylic acid, alpha-Methylcrotonic acid, 2-Methyl-2-butenoic acid, Cevadic acid, Tiglinic acid, FEMA 3599, MFCD00066864

Tiglic acid (CAS 80-59-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H8O2 and a molecular weight of 100.116 g/mol. Key properties include a melting point of 61-64 °C(lit.), a boiling point of 198.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 95.9±9.6 °C. It is classified under GHS with signal word Danger and hazard statements 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.
80-59-1
Jingsj CID
J-3522-3
Molecular Formula
C5H8O2
Molecular Weight
100.116 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point61-64 °C(lit.)
Boiling Point198.5±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point95.9±9.6 °C
Exact Mass100.052429
PSA37.30000
LogP1.35
Vapor Pressure0.2±0.7 mmHg at 25°C
Refractive Index1.451
Additional PropertySOLUBLE IN HOT WATER

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Activity & Biological Data

Additional Information[1]. ROBERT E. BUCKLES, et al. THE PREPARATION OF TIGLIC AND ANGELIC ACIDS AND ESTERS. Cite This:J. Org. Chem.1950153680-684.

Customs & Trade Information

HS Code29161980

Frequently Asked Questions

What is the CAS number of Tiglic acid?

The CAS number of Tiglic acid is 80-59-1.

What are the molecular formula and molecular weight of Tiglic acid?

Tiglic acid has molecular formula C5H8O2 and molecular weight 100.116 g/mol.

Is Tiglic acid hazardous?

Tiglic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Tiglic acid?

For Tiglic acid, Upstream Products: (E)-2-Bromo-2-butene, (Z)-2-bromo-2-butene, 2-Methyl-2-butenenitrile; Downstream Products: Methyl (2S)-2-methylbutanoate, Benzyl tiglate, trans-2-Methyl-2-butenoyl chloride.

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

Last updated:

How to cite: Jingsj. "Tiglic acid (CAS 80-59-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3522-3 (accessed 2026-11-09).

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