2-Hydroxy-2,2-di-2-thienylacetic acid

2-羟基-2,2-二(2-噻吩基)乙酸

Also known as: 2-Hydroxy-2,2-bis(2-thienyl)acetic acid, 2-Hydroxy-2,2-di(thiophen-2-yl)acetic acid, Dithienylglycolic acid, Di-2-thienylglycolic acid, Tiotropium Bromide EP Impurity A, Aclidinium Impurity 3

2-Hydroxy-2,2-di-2-thienylacetic acid (CAS 4746-63-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8O3S2 and a molecular weight of 240.29900 g/mol. It is also known as 2-Hydroxy-2,2-bis(2-thienyl)acetic acid, 2-Hydroxy-2,2-di(thiophen-2-yl)acetic acid and Dithienylglycolic acid. Key properties include a boiling point of 436.463ºC at 760 mmHg, a density of 1.528g/cm3 and a flash point of 217.765ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4746-63-8
Jingsj CID
J-1524569-2
Molecular Formula
C10H8O3S2
Chinese Name
2-羟基-2,2-二(2-噻吩基)乙酸
Molecular Weight
240.29900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point436.463ºC at 760 mmHg
Density1.528g/cm3
Flash Point217.765ºC

Frequently Asked Questions

What is the CAS number of 2-Hydroxy-2,2-di-2-thienylacetic acid?

The CAS number of 2-Hydroxy-2,2-di-2-thienylacetic acid is 4746-63-8.

What are the molecular formula and molecular weight of 2-Hydroxy-2,2-di-2-thienylacetic acid?

2-Hydroxy-2,2-di-2-thienylacetic acid has molecular formula C10H8O3S2 and molecular weight 240.29900 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Hydroxy-2,2-di-2-thienylacetic acid (CAS 4746-63-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524569-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.