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

4-(4-(叔丁氧羰基)哌嗪-1-基)苯并[b]噻吩-2-甲酸

Also known as: 1-Piperazinecarboxylic acid, 4-(2-carboxybenzo[b]thien-4-yl)-, 1-(1,1-dimethylethyl) ester, 4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid, Raloxifene Impurity 11

4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid (CAS 1677681-02-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H22N2O4S and a molecular weight of 362.4 g/mol. It is also known as 1-Piperazinecarboxylic acid, 4-(2-carboxybenzo[b]thien-4-yl)-, 1-(1,1-dimethylethyl) ester, 4-(4-(tert-butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid and Raloxifene Impurity 11. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1677681-02-5
Jingsj CID
J-345241-9
Molecular Formula
C18H22N2O4S
Chinese Name
4-(4-(叔丁氧羰基)哌嗪-1-基)苯并[b]噻吩-2-甲酸
Molecular Weight
362.4 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid?

The CAS number of 4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid is 1677681-02-5.

What are the molecular formula and molecular weight of 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 has molecular formula C18H22N2O4S and molecular weight 362.4 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(4-(tert-Butoxycarbonyl)piperazin-1-yl)benzo[b]thiophene-2-carboxylic acid (CAS 1677681-02-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-345241-9 (accessed 2026-10-25).

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