2,4-Diaminopyrimidine 3-N-Oxide

Name: 2,4-Diaminopyrimidine 3-N-Oxide
Brand: Vaqora Chemicals
SKU: VQ-026319

About 2,4-Diaminopyrimidine 3-N-Oxide

Vaqora Chemicals supplies 2,4-Diaminopyrimidine 3-N-Oxide, a metabolite or degradation product of Minoxidil registered under CAS number 74638-76-9. Formula C4H6N4O, molecular weight 126.12 g/mol. Its systematic (IUPAC) name is 3-hydroxy-2-iminopyrimidin-4-amine. Alternative names: Kopexil and 2,4-diaminopyrimidine-3-oxide.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

It is used in metabolite identification, stability-indicating method development and impurity profiling of Minoxidil, as well as in QC testing and ANDA/DMF documentation. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 2,4-Diaminopyrimidine 3-N-Oxide in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Minoxidil

View every impurity, metabolite and intermediate we list for Minoxidil.

Minoxidil impurities

Specifications & identifiers

Chemical identifiers
Product name	2,4-Diaminopyrimidine 3-N-Oxide
Catalogue No.	VQ-026319
CAS Number	74638-76-9
IUPAC name	3-hydroxy-2-iminopyrimidin-4-amine
Molecular formula	C₄H₆N₄O
Molecular weight	126.12 g/mol
Exact mass	126.0542
Grade	Reference Standard
HSN code	38229090
InChIKey	YTKGAYFHUZTLCI-UHFFFAOYSA-N
SMILES	C1=C(N(C(=N)N=C1)O)N
PubChem CID	10197687

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.4
H-bond donors / acceptors	3 / 3
TPSA	85.7 Å²
Synonyms	Kopexil, 2,4-diaminopyrimidine-3-oxide, 2,4-Diamino pyrimidine-3-oxide, Mexoryl SAG, 2,4-Pyrimidinediamine, 3-oxide, 2,6-diaminopyrimidine 1-oxide, diaminopyrimidine oxide, 2,4-Diaminopyrimidin-3-oxid, 2,4-Pyrimidinediamine 3-oxide, 6-Amino-2-iminopyrimidin-1(2H)-ol

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2,4-Diaminopyrimidine 3-N-Oxide?

The CAS Registry Number of 2,4-Diaminopyrimidine 3-N-Oxide is 74638-76-9. It is also known as Kopexil, 2,4-diaminopyrimidine-3-oxide, 2,4-Diamino pyrimidine-3-oxide.

What is the molecular formula and molecular weight of 2,4-Diaminopyrimidine 3-N-Oxide?

2,4-Diaminopyrimidine 3-N-Oxide has the molecular formula C4H6N4O and a molecular weight of 126.12 g/mol. Its IUPAC name is 3-hydroxy-2-iminopyrimidin-4-amine.

What is 2,4-Diaminopyrimidine 3-N-Oxide used for?

2,4-Diaminopyrimidine 3-N-Oxide is supplied as a characterised reference material related to Minoxidil. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 2,4-Diaminopyrimidine 3-N-Oxide can I order?

We supply 2,4-Diaminopyrimidine 3-N-Oxide in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,4-Diaminopyrimidine 3-N-Oxide?

Yes. Every lot of 2,4-Diaminopyrimidine 3-N-Oxide is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,4-Diaminopyrimidine 3-N-Oxide be shipped internationally?

Yes. 2,4-Diaminopyrimidine 3-N-Oxide is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.