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2,3-Dichloropyridine

Also known as: 2,3-Dichloropyridine, 2,3-dichloro-pyridine, Pyridine, 2,3-dichloro-, MFCD00006229, EINECS 219-281-8, 2,3-DICHLOROPYRIDINE

2,3-Dichloropyridine (CAS 2402-77-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3Cl2N and a molecular weight of 147.99 g/mol. Key properties include a melting point of 64-67 °C(lit.), a boiling point of 192.5±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 87.5±7.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2402-77-9
Jingsj CID
J-35343-5
Molecular Formula
C5H3Cl2N
Molecular Weight
147.99 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point64-67 °C(lit.)
Boiling Point192.5±20.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point87.5±7.4 °C
Exact Mass146.964249
PSA12.89000
LogP2.12
Vapor Pressure0.7±0.4 mmHg at 25°C
Refractive Index1.554
Additional Propertyslightly soluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933399090
Summary2933399090. 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 2,3-Dichloropyridine?

The CAS number of 2,3-Dichloropyridine is 2402-77-9.

What are the molecular formula and molecular weight of 2,3-Dichloropyridine?

2,3-Dichloropyridine has molecular formula C5H3Cl2N and molecular weight 147.99 g/mol.

Is 2,3-Dichloropyridine hazardous?

2,3-Dichloropyridine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2,3-Dichloropyridine?

For 2,3-Dichloropyridine, Upstream Products: 3-Amino-2-chloropyridine, 3-Aminopyridine, 2-Chloronicotinoyl chloride; Downstream Products: 2-Amino-3-chloropyridine, (3R)-1-(3-Chloropyridin-2-yl)-3-methylpiperazine, 3-Chloro-2-cyanopyridine.

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

Last updated:

How to cite: Jingsj. "2,3-Dichloropyridine (CAS 2402-77-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35343-5 (accessed 2026-11-09).

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