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Penicillic acid

Also known as: (2E)-3-Methoxy-5-methyl-4-oxo-2,5-hexadienoic acid, (2E)-3-Methoxy-5-methyl-4-oxohexa-2,5-dienoic acid, γ-Keto-β-methoxy-δ-methylene-Δα-hexenoic acid, NSC 402844, EINECS 202-008-1, MFCD00004365, Penicillinsaeure

Penicillic acid (CAS 90-65-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H10O4 and a molecular weight of 170.163 g/mol. Key properties include a melting point of 83-87ºC, a boiling point of 285.7±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 113.5±19.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
90-65-3
Jingsj CID
J-35483-3
Molecular Formula
C8H10O4
Molecular Weight
170.163 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point83-87ºC
Boiling Point285.7±35.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point113.5±19.4 °C
Exact Mass170.057907
PSA63.60000
LogP0.84
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.482
Additional PropertyDMSO: >10mg/mL

Activity & Biological Data

Additional Information[1]. Sorenson WG, et al. Toxicity of penicillic acid for rat alveolar macrophages in vitro. Environ Res. 1986 Dec;41(2):505-13. [2]. Bando M, et al. The mycotoxin penicillic acid inhibits Fas ligand-induced apoptosis by blocking self-processing of caspase-8 in death-inducing signaling complex. J Biol Chem. 2003 Feb 21;278(8):5786-93.

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Penicillic acid?

The CAS number of Penicillic acid is 90-65-3.

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

Penicillic acid has molecular formula C8H10O4 and molecular weight 170.163 g/mol.

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

Last updated:

How to cite: Jingsj. "Penicillic acid (CAS 90-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35483-3 (accessed 2026-11-07).

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