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2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid

Also known as: 2-Hydroxy-3-methoxy-3,3-diphenylpropionic acid, Ambrisentan PI-2, Benzenepropanoic acid, α-hydroxy-β-methoxy-β-phenyl-, rac-2-hydroxy-3-methoxy-3,3-diphenylpropionic acid, alpha-Hydroxy-beta-methoxy-beta-phenylbenzenepropanoic acid, hydroxymethoxydiphenylpropanoicacid

2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid (CAS 178306-51-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H16O4 and a molecular weight of 272.296 g/mol. Key properties include a boiling point of 430.3±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 158.4±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
178306-51-9
Jingsj CID
J-1080716-6
Molecular Formula
C16H16O4
Molecular Weight
272.296 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point430.3±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point158.4±22.2 °C
Exact Mass272.104858
PSA66.76000
LogP4.10
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.592

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 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid?

The CAS number of 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid is 178306-51-9.

What are the molecular formula and molecular weight of 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid?

2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid has molecular formula C16H16O4 and molecular weight 272.296 g/mol.

What are the upstream and downstream products of 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid?

For 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid, Upstream Products: Methyl 2-hydroxy-3-methoxy-3,3-diphenylpropanoate, Benzophenone, (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid; Downstream Products: Darusentan, (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid, Methyl (2S)-2-hydroxy-3-methoxy-3,3-diphenylpropanoate.

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

Last updated:

How to cite: Jingsj. "2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid (CAS 178306-51-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1080716-6 (accessed 2026-11-09).

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