3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride

Also known as: 3-Piperazinobenzisothiazole hydrochloride, 3-Piperazinyl-1,2-benzisothiazole hydrochloride, 3-Piperazin-1-ylbenzo[d]isothiazole hydrochloride, 1,2-Benzisothiazole, 3-(1-piperazinyl)-, hydrochloride (1:1), 1-(1,2-Benzisothiazol-3-yl)piperazine hydrochloride, 4-(1,2-Benzisothiazol-3-yl)piperazine hydrochloride, 1,2-Benzisothiazole, 3-(1-piperazinyl)-, hydrochloride, 3-(1-Piperazinyl)-1,2-benzothiazole hydrochloride, Ziprasidone impurity A, Lurasidone impurity 01 hydrochloride

3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride (CAS 87691-88-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H14ClN3S and a molecular weight of 255.767 g/mol. Key properties include a boiling point of 320.2ºC at 760 mmHg and a flash point of 147.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 87691-88-1
Jingsj CID: J-954480-3
Molecular Formula: C₁₁H₁₄ClN₃S
Molecular Weight: 255.767 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	320.2ºC at 760 mmHg
Flash Point	147.4ºC
Exact Mass	255.059692
PSA	56.40000
LogP	2.90170
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride?

The CAS number of 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride is 87691-88-1.

What are the molecular formula and molecular weight of 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride?

3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride has molecular formula C11H14ClN3S and molecular weight 255.767 g/mol.

What are the upstream and downstream products of 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride?

For 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride, Upstream Products: Piperazine, 3-Chloro-1,2-benzisothiazole, 2,2'-DITHIOBIS(BENZONITRILE); Downstream Products: Ziprasidone hydrochloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride (CAS 87691-88-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-954480-3 (accessed 2026-11-09).

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