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Pharmacopeial Impurities (EP / USP / BP)

Minoxidil EP Impurity A

Reference StandardAvailable on request

Order Minoxidil EP Impurity A (CAS 35139-67-4) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Minoxidil EP Impurity A chemical structure
CAS number35139-67-4
FormulaC4H5ClN4O
Molar mass160.56 g/mol
Physical formSolid
HS code38229090
InChIKeyDOYINGSIUJRVKA-UHFFFAOYSA-N
IUPAC name6-chloro-3-hydroxy-2-iminopyrimidin-4-amine

About Minoxidil EP Impurity A

Minoxidil EP Impurity A is supplied by Zemixal as a characterised reference material for Minoxidil analysis. Key data (Reference Standard): CAS 35139-67-4, formula C4H5ClN4O and molar mass 160.56 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Classified under GHS with signal word Danger and hazard statements H200, H228, H315 and H319. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Minoxidil

See every impurity, metabolite and related compound we list for this API.

Minoxidil standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Minoxidil EP Impurity A
Product nameMinoxidil EP Impurity A
Catalogue numberZX-022170
CAS number35139-67-4
IUPAC name6-chloro-3-hydroxy-2-iminopyrimidin-4-amine
Molecular formulaC4H5ClN4O
Molar mass160.56 g/mol
Exact mass160.0152
GradeReference Standard
Physical formSolid
XLogP31.4
H-bond donors / acceptors3 / 3
Topological polar surface area85.7 Ų
HS code38229090
InChIKeyDOYINGSIUJRVKA-UHFFFAOYSA-N
SMILESC1=C(N(C(=N)N=C1Cl)O)N
PubChem CID1551525
SynonymsMinoxidil - 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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS01 Explosive
Explosive
GHS02 Flammable
Flammable
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Minoxidil EP Impurity A
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Minoxidil EP Impurity A

Which CAS number identifies Minoxidil EP Impurity A?
Minoxidil EP Impurity A is registered under CAS 35139-67-4. You may also see it listed as Minoxidil - Impurity A, 2,4-diamino-6-chloropyrimidine-3-oxide, 6-Chloro-2,3-dihydro-3-hydroxy-2-imino-4-pyrimidinamine. Our catalogue number for this item is ZX-022170.
What are the formula and molar mass of Minoxidil EP Impurity A?
For Minoxidil EP Impurity A, its formula is C4H5ClN4O and its molar mass is 160.56 g/mol. The systematic (IUPAC) name is 6-chloro-3-hydroxy-2-iminopyrimidin-4-amine. InChIKey DOYINGSIUJRVKA-UHFFFAOYSA-N lets you match it in any structure database.
How is Minoxidil EP Impurity A used in pharmaceutical QC?
Minoxidil EP Impurity A is a characterised reference material linked to Minoxidil. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Minoxidil EP Impurity A?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Minoxidil EP Impurity A?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Minoxidil EP Impurity A to my country?
Yes. Because Minoxidil EP Impurity A is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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