Minoxidil EP Impurity A

Name: Minoxidil EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-023145

About Minoxidil EP Impurity A

Listed under CAS 35139-67-4, Minoxidil EP Impurity A is a pharmacopeial impurity of Minoxidil available from Vaqora Chemicals. Its molecular formula is C4H5ClN4O and its molecular weight is 160.56 g/mol. The IUPAC name is 6-chloro-3-hydroxy-2-iminopyrimidin-4-amine. Common synonyms include Minoxidil - Impurity A and 2,4-diamino-6-chloropyrimidine-3-oxide.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

This Minoxidil impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Minoxidil

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

Minoxidil impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Minoxidil EP Impurity A
Catalogue No.	VQ-023145
CAS Number	35139-67-4
IUPAC name	6-chloro-3-hydroxy-2-iminopyrimidin-4-amine
Molecular formula	C₄H₅ClN₄O
Molecular weight	160.56 g/mol
Exact mass	160.0152
Grade	Reference Standard
HSN code	38229090
InChIKey	DOYINGSIUJRVKA-UHFFFAOYSA-N
SMILES	C1=C(N(C(=N)N=C1Cl)O)N
PubChem CID	1551525

Physical properties
Physical form	Solid
LogP (XLogP3)	1.4
H-bond donors / acceptors	3 / 3
TPSA	85.7 Å²
Synonyms	Minoxidil - Impurity A, 2,4-diamino-6-chloropyrimidine-3-oxide, 6-Chloro-2,3-dihydro-3-hydroxy-2-imino-4-pyrimidinamine, 2,6-Diamino-4-chloropyrimidine 1-oxide, 6-Amino-4-chloro-2-iminopyrimidin-1(2H)-ol, 6-Chloro-pyrimidine-2,4-diamine 3-Oxide, 2,6-Diamino-4-chloropyrimidine-1-oxide, 6-chloropyrimidine-2,4-diamine 3-oxide, Minoxidil Impurity A, 2,4-Pyrimidinediamine, 6-chloro-, 3-oxide, 2,4-diamino-6-chloropyrimidine 3-oxide

Safety & hazard information (GHS)

Explosive

Flammable

Harmful / irritant

Signal word: Danger

Hazard statements

H200(deleted) unstable explosive
H228Flammable solid
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P201, P202, P210, P240, P241, P261, P264, P264 + P265, P271, P280, P281, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P372, P373, P380, P401

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 Minoxidil EP Impurity A?

The CAS Registry Number of Minoxidil EP Impurity A is 35139-67-4. It is also known as Minoxidil - Impurity A, 2,4-diamino-6-chloropyrimidine-3-oxide, 6-Chloro-2,3-dihydro-3-hydroxy-2-imino-4-pyrimidinamine.

What is the molecular formula and molecular weight of Minoxidil EP Impurity A?

Minoxidil EP Impurity A has the molecular formula C4H5ClN4O and a molecular weight of 160.56 g/mol. Its IUPAC name is 6-chloro-3-hydroxy-2-iminopyrimidin-4-amine.

What is Minoxidil EP Impurity A used for?

Minoxidil EP Impurity A 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 Minoxidil EP Impurity A can I order?

We supply Minoxidil EP Impurity A 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 Minoxidil EP Impurity A?

Yes. Every lot of Minoxidil EP Impurity A 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 Minoxidil EP Impurity A be shipped internationally?

Yes. Minoxidil EP Impurity A 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.