Pirenzepine dihydrochloride

盐酸哌仑西平

Also known as: Pirenzepine hydrochloride, Pirenzepine, Dihydrochloride, 5,11-dihydro-11-[2-(4-methyl-1-piperazinyl)acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one dihydrochloride, 11-[(4-methyl-1-piperazinyl)acetyl]-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one dihydrochloride, LS 519 dihydrochloride, Gastrozepin, Bisvanil, Gasteril, Leblon, Maghen, Renzepin, Tabe, Ulcosan, Ulcuforton, Ulcuforton

Pirenzepine dihydrochloride (CAS 29868-97-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H23Cl2N5O2 and a molecular weight of 424.324 g/mol. It is also known as Pirenzepine hydrochloride, Pirenzepine, Dihydrochloride and 5,11-dihydro-11-[2-(4-methyl-1-piperazinyl)acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one dihydrochloride. Key properties include a melting point of 248-250°C, a boiling point of 541.7ºC at 760 mmHg and a flash point of 281.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 29868-97-1
Jingsj CID: J-11437-6
Molecular Formula: C₁₉H₂₃Cl₂N₅O₂
Chinese Name: 盐酸哌仑西平
Molecular Weight: 424.324 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	248-250°C
Boiling Point	541.7ºC at 760 mmHg
Flash Point	281.4ºC
Exact Mass	423.122894
PSA	74.23000
LogP	2.80740
Additional Property	H2O: 50 mg/mL

Activity & Biological Data

Additional Information	[1]. Del Tacca M, et al. A selective antimuscarinic agent: pirenzepine. Review of its pharmacologic and clinical properties. Minerva Dietol Gastroenterol. 1989 Jul-Sep;35(3):175-89. [2]. Ojewole JA, et al. Effects of pirenzepine (Gastrozepin) on skeletal muscle contractility. Methods Find Exp Clin Pharmacol. 1983 Nov;5(9):619-23. [3]. Caulfield MP, et al. Central administration of the muscarinic receptor subtype-selective antagonist pirenzepine selectively impairs passiveavoidance learning in the mouse. J Pharm Pharmacol. 1983 Feb;35(2):131-2. [4]. Hirschowitz BI, et al. Effects of pirenzepine and atropine on vagal and cholinergic gastric secretion and gastrin release and on heart rate in the dog. J Pharmacol Exp Ther. 1983 May;225(2):263-8.

Additional Information

[1]. Del Tacca M, et al. A selective antimuscarinic agent: pirenzepine. Review of its pharmacologic and clinical properties. Minerva Dietol Gastroenterol. 1989 Jul-Sep;35(3):175-89. [2]. Ojewole JA, et al. Effects of pirenzepine (Gastrozepin) on skeletal muscle contractility. Methods Find Exp Clin Pharmacol. 1983 Nov;5(9):619-23. [3]. Caulfield MP, et al. Central administration of the muscarinic receptor subtype-selective antagonist pirenzepine selectively impairs passiveavoidance learning in the mouse. J Pharm Pharmacol. 1983 Feb;35(2):131-2. [4]. Hirschowitz BI, et al. Effects of pirenzepine and atropine on vagal and cholinergic gastric secretion and gastrin release and on heart rate in the dog. J Pharmacol Exp Ther. 1983 May;225(2):263-8.

Frequently Asked Questions

What is the CAS number of Pirenzepine dihydrochloride?

The CAS number of Pirenzepine dihydrochloride is 29868-97-1.

What are the molecular formula and molecular weight of Pirenzepine dihydrochloride?

Pirenzepine dihydrochloride has molecular formula C19H23Cl2N5O2 and molecular weight 424.324 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Pirenzepine dihydrochloride (CAS 29868-97-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11437-6 (accessed 2026-10-28).

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