Isonicotinoyl Chloride Hydrochloride

Also known as: Isonicotinoyl chloride hydrochloride, Pyridine-4-carbonyl chloride hydrochloride, 4-Pyridinecarbonyl chloride hydrochloride, 4-Pyridinoyl chloride hydrochloride

Isonicotinoyl Chloride Hydrochloride (CAS 39178-35-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5Cl2NO and a molecular weight of 178.016 g/mol. Key properties include a melting point of 159-161 °C(lit.), a boiling point of 252.9ºC at 760 mmHg, a density of 1.297g/cm3 and a flash point of 106.8ºC. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 39178-35-3
Jingsj CID: J-1361674-5
Molecular Formula: C₆H₅Cl₂NO
Molecular Weight: 178.016 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	159-161 °C(lit.)
Boiling Point	252.9ºC at 760 mmHg
Density	1.297g/cm3
Flash Point	106.8ºC
Exact Mass	176.974823
PSA	29.96000
LogP	2.26260

GHS Safety & Compliance

CorrosionSignal word: Danger

H314 — Causes severe skin burns and eye damage

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 Isonicotinoyl Chloride Hydrochloride?

The CAS number of Isonicotinoyl Chloride Hydrochloride is 39178-35-3.

What are the molecular formula and molecular weight of Isonicotinoyl Chloride Hydrochloride?

Isonicotinoyl Chloride Hydrochloride has molecular formula C6H5Cl2NO and molecular weight 178.016 g/mol.

Is Isonicotinoyl Chloride Hydrochloride hazardous?

Isonicotinoyl Chloride Hydrochloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Isonicotinoyl Chloride Hydrochloride?

For Isonicotinoyl Chloride Hydrochloride, Upstream Products: Isonicotinic acid, Isonicotinoyl chloride; Downstream Products: Isoniazid, Ethyl 4-pyridylacetate, 4-(Aminomethyl)pyridine.

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. "Isonicotinoyl Chloride Hydrochloride (CAS 39178-35-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361674-5 (accessed 2026-11-09).

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