4-Chloro-2-(trimethylsilyl)pyridine

Also known as: 4-Chloro-2-trimethylsilylpyridine, 4-CHLORO-2-TRIMETHYLSILYLPYRIDINE, (4-chloropyridin-2-yl)-trimethylsilane, Pyridine, 4-chloro-2-(trimethylsilyl)-

4-Chloro-2-(trimethylsilyl)pyridine (CAS 139585-50-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H12ClNSi and a molecular weight of 185.72600 g/mol. Key properties include a boiling point of 205.1ºC at 760 mmHg, a density of 1.03g/cm3 and a flash point of 77.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 139585-50-5
Jingsj CID: J-1495475-7
Molecular Formula: C₈H₁₂ClNSi
Molecular Weight: 185.72600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	205.1ºC at 760 mmHg
Density	1.03g/cm3
Flash Point	77.8ºC
Exact Mass	185.04300
PSA	12.89000
LogP	2.28020
Vapor Pressure	0.365mmHg at 25°C
Refractive Index	1.492

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 4-Chloro-2-(trimethylsilyl)pyridine?

The CAS number of 4-Chloro-2-(trimethylsilyl)pyridine is 139585-50-5.

What are the molecular formula and molecular weight of 4-Chloro-2-(trimethylsilyl)pyridine?

4-Chloro-2-(trimethylsilyl)pyridine has molecular formula C8H12ClNSi and molecular weight 185.72600 g/mol.

What are the upstream and downstream products of 4-Chloro-2-(trimethylsilyl)pyridine?

For 4-Chloro-2-(trimethylsilyl)pyridine, Upstream Products: 4-chloropyridine, Chlorotrimethylsilane, 2-Bromo-4-chloropyridine; Downstream Products: 3,3'-Bipyridine, 2-Bromothiophene, 4,4'-Dichloro-2,2'-bipyridine.

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. "4-Chloro-2-(trimethylsilyl)pyridine (CAS 139585-50-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495475-7 (accessed 2026-11-09).

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