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4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid

4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid Structure
4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid structure
CAS No.
1677681-02-5
Chemical Name:
4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid
Synonyms
Raloxifene Impurity 11;4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid;1-Piperazinecarboxylic acid, 4-(2-carboxybenzo[b]thien-4-yl)-, 1-(1,1-dimethylethyl) ester
CBNumber:
CB24775003
Molecular Formula:
C18H22N2O4S
Molecular Weight:
362.44
MDL Number:
MFCD29058610
MOL File:
1677681-02-5.mol
Last updated:2026-05-28 00:45:01
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4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid Properties

Boiling point 554.7±50.0 °C(Predicted)
Density 1.312±0.06 g/cm3(Predicted)
pka 3.94±0.30(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335-H302
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362-P264-P270-P301+P312-P330-P501

4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 429022 4-(4-Boc-piperazin-1-yl)benzo[b]thein-2-carboxylate 1677681-02-5 100mg $468 2026-06-03 Buy
Usbiological 429022 4-(4-Boc-piperazin-1-yl)benzo[b]thein-2-carboxylate 1677681-02-5 250mg $927 2026-06-03 Buy
Biosynth CSC68102 4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid 1677681-02-5 100mg $326 2026-06-04 Buy
Biosynth CSC68102 4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid 1677681-02-5 1g $1038.4 2026-06-04 Buy
aablocks AA01DT9H 4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid 95.00% 1677681-02-5 50mg $135 2026-05-29 Buy
Product number Packaging Price Buy
429022 100mg $468 Buy
429022 250mg $927 Buy
CSC68102 100mg $326 Buy
CSC68102 1g $1038.4 Buy
AA01DT9H 50mg $135 Buy

4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid Chemical Properties, Uses, Production

Uses

4-(4-Boc-piperazin-1-yl)benzo[b]thein-2-carboxylate is an intermediate in the synthesis of Brexpiprazole (B677385).

4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid Suppliers

Global Suppliers ( 9)
Supplier Tel Email Country ProdList Advantage
Aikon International Limited 025-58851090 13913916777 sales01@aikonchem.com China 15947 58
Jinan blalong chemical co. LTD 2710913286@qq.com 1513643261@qq.com China 14227 58
Cato Research Chemicals Inc. +86-020-81960175-877 4000-868-328;4000-868-328 tianwen.zhan@cato-chem.com United States 10384 58
Meng Cheng Technology (Shanghai) Co., LTD 400-820-6829 sales@mitachieve.com China 8857 58
Energy Chemical 400-0056266 marketing1@energy-chemical.com China 44927 58
Suzhou Hosyn Pharm Ltd. 17621975170; 17621975170 sales@hosynpharm.com China 1735 58
Changzhou Xianglong Pharmaceutical Technology Co., Ltd., 18915873328 18915873328 sales@xianglongpharm.com China 11049 58
Supplier Advantage
Aikon International Limited 58
Jinan blalong chemical co. LTD 58
Cato Research Chemicals Inc. 58
Meng Cheng Technology (Shanghai) Co., LTD 58
Energy Chemical 58
Suzhou Hosyn Pharm Ltd. 58
Changzhou Xianglong Pharmaceutical Technology Co., Ltd., 58
4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid Raloxifene Impurity 11 1-Piperazinecarboxylic acid, 4-(2-carboxybenzo[b]thien-4-yl)-, 1-(1,1-dimethylethyl) ester 1677681-02-5