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4-(tert-butyl)cinnamic acid

Also known as: (2E)-3-(4-tert-butylphenyl)acrylic acid, 3-[4-(1,1-dimethylethyl)phenyl]-2-propenoic acid, p-tert-butylcinnamic acid, MFCD00040719, AURORA 8635, LABOTEST-BB LT00233194

4-(tert-butyl)cinnamic acid (CAS 1208-65-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H16O2 and a molecular weight of 204.26500 g/mol. Key properties include a melting point of 198-200ºC, a boiling point of 318ºC at 760 mmHg, a density of 1.065g/cm3 and a flash point of 222.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1208-65-7
Jingsj CID
J-1084663-6
Molecular Formula
C13H16O2
Molecular Weight
204.26500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point198-200ºC
Boiling Point318ºC at 760 mmHg
Density1.065g/cm3
Flash Point222.5ºC
Exact Mass204.11500
PSA37.30000
LogP3.08190
Vapor Pressure0.000156mmHg at 25°C
Refractive Index1.561

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-(tert-butyl)cinnamic acid?

The CAS number of 4-(tert-butyl)cinnamic acid is 1208-65-7.

What are the molecular formula and molecular weight of 4-(tert-butyl)cinnamic acid?

4-(tert-butyl)cinnamic acid has molecular formula C13H16O2 and molecular weight 204.26500 g/mol.

What are the upstream and downstream products of 4-(tert-butyl)cinnamic acid?

For 4-(tert-butyl)cinnamic acid, Upstream Products: Malonic acid, 4-tert-Butylbenzaldehyde, 4-TERT-BUTYLSTYRENE; Downstream Products: Benzene,1-(1,1-dimethylethyl)-4-ethynyl-, 3-(4-tert-Butylphenyl)propanoic acid.

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

Last updated:

How to cite: Jingsj. "4-(tert-butyl)cinnamic acid (CAS 1208-65-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084663-6 (accessed 2026-11-09).

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