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2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID structure

CAS No.: 4746-63-8

Chemical Name:: 2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID

Synonyms: Aclidinium Impurity 3;Dithienylglycolic acid;Di-2-thienylglycolic Acid;Titropium bromide EP impurity A;Tiotropium Bromide EP Impurity A;2-HYDROXY-2,2-DITHIOPHEN-2-YLACETICACID;2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID;2-Thiopheneacetic acid, α-hydroxy-α-2-thienyl-;Tiotropium Bromide EP Impurity B (Aclidinium Impurity 3);Tiotropium Bromide Impurity 1(Tiotropium Bromide EP Impurity A)

CBNumber:: CB3749100

Molecular Formula:: C10H8O3S2

Molecular Weight:: 240.29

MDL Number:: MFCD04038827

MOL File:: 4746-63-8.mol

MSDS File:: SDS

Last updated:2026-05-28 01:14:10

Product description	Number	Pack Size	Price
2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetic Acid 97%	AA003HAU	100mg	$47
2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetic Acid 97%	AA003HAU	250mg	$72
2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetic Acid 97%	AA003HAU	1g	$180
2-hydroxy-2,2-bis(thiophen-2-yl)acetic acid 95%	AD242188	1G	$210
2-hydroxy-2,2-bis(thiophen-2-yl)acetic acid 95%	AD242188	5G	$840

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2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID Properties

Melting point	93 °C
Boiling point	436.5±40.0 °C(Predicted)
Density	1.527±0.06 g/cm3(Predicted)
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	DMSO (Sparingly), Methanol (Slightly, Sonicated)
pka	2.79±0.25(Predicted)
form	Solid
color	Light Grey to Black
Stability	Light Sensitive
Major Application	pharmaceutical small molecule
FDA UNII	RI3X2J9148
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302-H315-H319-H335
Precautionary statements	P261-P305+P351+P338

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
aablocks	AA003HAU	2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetic Acid 97%	4746-63-8	100mg	$47	2026-05-28	Buy
aablocks	AA003HAU	2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetic Acid 97%	4746-63-8	250mg	$72	2026-05-28	Buy
aablocks	AA003HAU	2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetic Acid 97%	4746-63-8	1g	$180	2026-05-28	Buy
ACHEMBLOCK	AD242188	2-hydroxy-2,2-bis(thiophen-2-yl)acetic acid 95%	4746-63-8	1G	$210	2026-05-27	Buy
ACHEMBLOCK	AD242188	2-hydroxy-2,2-bis(thiophen-2-yl)acetic acid 95%	4746-63-8	5G	$840	2026-05-27	Buy

Product number	Packaging	Price	Buy
AA003HAU	100mg	$47	Buy
AA003HAU	250mg	$72	Buy
AA003HAU	1g	$180	Buy
AD242188	1G	$210	Buy
AD242188	5G	$840	Buy

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID Chemical Properties,Uses,Production

Uses

Di-2-thienylglycolic Acid is an analog of Methyl Di(2-thienylglycolate) (M303765), an intermediate in the production of Tiotropium Bromide (T444850), a long-acting bronchodilator.

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

Methyl 2,2-dithienylglycolate

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID Suppliers

Global( 91)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shaanxi Dideu Medichem Co. Ltd	+86-29-81139210 +86-18192627656	1059@dideu.com	China	3589	58
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14332	58
Hubei Ipure Biology Co., Ltd	+8613367258412	ada@ipurechemical.com	China	10236	58
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12373	58
Hangzhou MolCore BioPharmatech Co.,Ltd.	+86-057181025280; +8617767106207	sales@molcore.com	China	49734	58
Wuhan Topule Biopharmaceutical Co., Ltd	+8618327326525	masar@topule.com	China	8467	58
Moxin Chemicals	+86-17320513646 +8617320513646	anna@molcoo.com	China	10000	58
QUALITY CONTROL SOLUTIONS LTD.	+86-0755-66853366 +8613670046396	export03@qcsrm.com	China	24342	58
J & K SCIENTIFIC LTD.	18210857532; 18210857532	jkinfo@jkchemical.com	China	96815	76
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32321	50

Supplier	Advantage
Shaanxi Dideu Medichem Co. Ltd	58
Standardpharm Co. Ltd.	58
Hubei Ipure Biology Co., Ltd	58
sgtlifesciences pvt ltd	58
Hangzhou MolCore BioPharmatech Co.,Ltd.	58
Wuhan Topule Biopharmaceutical Co., Ltd	58
Moxin Chemicals	58
QUALITY CONTROL SOLUTIONS LTD.	58
J & K SCIENTIFIC LTD.	76
Chemsky（shanghai）International Co.,Ltd.	50

View Lastest Price from 2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-12-12	2-Hydroxy-2,2-di(thiophen-2-yl)aceticacid 4746-63-8	US $1.00-22.00 / KG	1KG	99%	100000KG	Shaanxi Dideu Medichem Co. Ltd

2-Hydroxy-2,2-di(thiophen-2-yl)aceticacid
4746-63-8
US $1.00-22.00 / KG
99%
Shaanxi Dideu Medichem Co. Ltd

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID Spectrum

2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID(4746-63-8)¹HNMR

4746-63-8(2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID)Related Search:

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2-HYDROXY-2,2-BIS(2-THIENYL) ACETIC ACID Di-2-thienylglycolic Acid 2-HYDROXY-2,2-DITHIOPHEN-2-YLACETICACID Aclidinium Impurity 3 Tiotropium Bromide Impurity 1(Tiotropium Bromide EP Impurity A) Tiotropium Bromide EP Impurity A 2-Thiopheneacetic acid, α-hydroxy-α-2-thienyl- Tiotropium Bromide EP Impurity B (Aclidinium Impurity 3) Dithienylglycolic acid Titropium bromide EP impurity A 4746-63-8 C10H8O3S2 Sulphur Derivatives Heterocycles, Pharmaceuticals, Intermediates & Fine Chemicals