4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine

4-氯-6,7-二氢-5H-环戊二烯并[b]吡啶

Also known as: 5H-Cyclopenta[b]pyridine, 4-chloro-6,7-dihydro-, 4-chloro-6,7-dihydro-5H-1-pyrindine, 4-chloro-pyrindan, 5H-1-Pyrindine, 4-chloro-6,7-dihydro-, 4-Chloro-2,3-cyclopentenopyridine

4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine (CAS 54664-55-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8ClN and a molecular weight of 153.609 g/mol. It is also known as 5H-Cyclopenta[b]pyridine, 4-chloro-6,7-dihydro-, 4-chloro-6,7-dihydro-5H-1-pyrindine and 4-chloro-pyrindan. Key properties include a boiling point of 234.4±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 118.1±12.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 54664-55-0
Jingsj CID: J-1491247-8
Molecular Formula: C₈H₈ClN
Chinese Name: 4-氯-6,7-二氢-5H-环戊二烯并[b]吡啶
Molecular Weight: 153.609 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	234.4±40.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	118.1±12.9 °C

Frequently Asked Questions

What is the CAS number of 4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine?

The CAS number of 4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine is 54664-55-0.

What are the molecular formula and molecular weight of 4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine?

4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine has molecular formula C8H8ClN and molecular weight 153.609 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. "4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine (CAS 54664-55-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1491247-8 (accessed 2026-10-25).

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