2-chloro-6-methylpyrimidine-4,5-diamine

Also known as: 2-chloro-4,5-diamino-6-methylpyrimidine, 4,5-pyrimidinediamine, 2-chloro-6-methyl-, 2-chloro-6-methyl-pyrimidine-4,5-diyldiamine, 4,5-diamino-2-chloro-6-methylpyrimidine

2-chloro-6-methylpyrimidine-4,5-diamine (CAS 63211-98-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7ClN4 and a molecular weight of 158.58900 g/mol. Key properties include a melting point of 249-252ºC, a boiling point of 377.1ºC at 760 mmHg, a density of 1.459 g/cm3 and a flash point of 181.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 63211-98-3
Jingsj CID: J-14936-0
Molecular Formula: C₅H₇ClN₄
Molecular Weight: 158.58900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	249-252ºC
Boiling Point	377.1ºC at 760 mmHg
Density	1.459 g/cm3
Flash Point	181.8ºC
Exact Mass	158.03600
PSA	77.82000
LogP	1.76520
Refractive Index	1.671

Customs & Trade Information

HS Code	2933599090
Summary	2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring 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-chloro-6-methylpyrimidine-4,5-diamine?

The CAS number of 2-chloro-6-methylpyrimidine-4,5-diamine is 63211-98-3.

What are the molecular formula and molecular weight of 2-chloro-6-methylpyrimidine-4,5-diamine?

2-chloro-6-methylpyrimidine-4,5-diamine has molecular formula C5H7ClN4 and molecular weight 158.58900 g/mol.

What are the upstream and downstream products of 2-chloro-6-methylpyrimidine-4,5-diamine?

For 2-chloro-6-methylpyrimidine-4,5-diamine, Upstream Products: 4-Amino-2-chloro-6-methyl-5-nitropyrimidine, 2,4-Dichloro-6-methyl-5-nitropyrimidine; Downstream Products: 7-methyl-1H-[1,2,3]triazolo[4,5-d]pyrimidine, 2-Chloro-6-methyl-9H-purine, 6-methylpyrimidine-4,5-diamine.

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. "2-chloro-6-methylpyrimidine-4,5-diamine (CAS 63211-98-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14936-0 (accessed 2026-11-09).

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