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2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride

Also known as: (2,4-Diaminopteridin-6-yl)methanol hydrochloride, (2,4-Diamino-6-pteridinyl)methanol hydrochloride, 2,4-Diamino-6-(hydroxymethyl)pteridine HCl, 6-(Hydroxymethyl)pteridine-2,4-diamine hydrochloride, Methotrexate EP Impurity A HCl, 2,4-Diamino-6-pteridinemethanol hydrochloride, (2,4-diaminopteridin-6-yl)methanol hydrochloride hydrate

2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride (CAS 73978-41-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H9ClN6O and a molecular weight of 228.639 g/mol. Key properties include a melting point of 220ºC(lit.), a boiling point of 636.5ºC at 760 mmHg and a flash point of 338.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
73978-41-3
Jingsj CID
J-11729-3
Molecular Formula
C7H9ClN6O
Molecular Weight
228.639 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point220ºC(lit.)
Boiling Point636.5ºC at 760 mmHg
Flash Point338.8ºC
Exact Mass228.052643
PSA123.83000
LogP1.04090

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride?

The CAS number of 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride is 73978-41-3.

What are the molecular formula and molecular weight of 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride?

2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride has molecular formula C7H9ClN6O and molecular weight 228.639 g/mol.

What are the upstream and downstream products of 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride?

For 2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride, Upstream Products: 2,4,5,6-Tetraaminopyrimidine, 1,3-Dihydroxyacetone, 2,4,5,6-Tetraaminopyrimidine sulfate; Downstream Products: 2,4-diamino-6-(hydroxymethyl)pteridine, 4-(((2,4-Diaminopteridin-6-yl)methyl)(methyl)amino)benzoic acid, 6-(Bromomethyl)-2,4-pteridinediamine.

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

Last updated:

How to cite: Jingsj. "2,4-Diamino-6-(hydroxymethyl)pteridine hydrochloride (CAS 73978-41-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11729-3 (accessed 2026-11-09).

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