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(S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid

Also known as: Benzenepropanoic acid, α-hydroxy-β-methoxy-β-phenyl-, (αS)-, (2S)-2-hydroxy-3-methoxy-3,3-diphenylpropanoic acid, Ambrisentan InterMediate, Ambrisentan Hydroxy Acid Impurity, (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropionic Acid

(S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid (CAS 178306-52-0) 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 melting point of 120 °C(dec.), 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.
178306-52-0
Jingsj CID
J-1019743-0
Molecular Formula
C16H16O4
Molecular Weight
272.296 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point120 °C(dec.)
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

Frequently Asked Questions

What is the CAS number of (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid?

The CAS number of (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid is 178306-52-0.

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

(S)-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 (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid?

For (S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid, Upstream Products: 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid, Benzophenone, Methyl 2-hydroxy-3-methoxy-3,3-diphenylpropanoate; Downstream Products: Darusentan, Methyl (2S)-2-hydroxy-3-methoxy-3,3-diphenylpropanoate, 2-Hydroxy-3-methoxy-3,3-diphenylpropanoic 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. "(S)-2-Hydroxy-3-methoxy-3,3-diphenylpropanoic acid (CAS 178306-52-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1019743-0 (accessed 2026-11-09).

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