4,5-Dichloropyridine-2,3-diamine

Also known as: 2,3-Diamino-4,5-dichloropyridine, 2,3-Pyridinediamine, 4,5-dichloro-, 4,5-dichloropyridine-2,3-diamine

4,5-Dichloropyridine-2,3-diamine (CAS 662116-66-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5Cl2N3 and a molecular weight of 178.01900 g/mol. Key property: a density of 1.602. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 662116-66-7
Jingsj CID: J-1454211-1
Molecular Formula: C₅H₅Cl₂N₃
Molecular Weight: 178.01900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.602
Exact Mass	176.98600
PSA	64.93000
LogP	2.71520

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 4,5-Dichloropyridine-2,3-diamine?

The CAS number of 4,5-Dichloropyridine-2,3-diamine is 662116-66-7.

What are the molecular formula and molecular weight of 4,5-Dichloropyridine-2,3-diamine?

4,5-Dichloropyridine-2,3-diamine has molecular formula C5H5Cl2N3 and molecular weight 178.01900 g/mol.

What are the upstream and downstream products of 4,5-Dichloropyridine-2,3-diamine?

For 4,5-Dichloropyridine-2,3-diamine, Upstream Products: 4,5-dichloro-3-nitropyridin-2-amine.

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. "4,5-Dichloropyridine-2,3-diamine (CAS 662116-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1454211-1 (accessed 2026-11-09).

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