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Pharmacopeial Impurities (EP / USP / BP)

Sildenafil EP Impurity A

Reference StandardAvailable on request

Buy Sildenafil EP Impurity A (CAS 1391053-95-4) from Zemixal. Request a quote with price, lead time and documents. Exported from India with full paperwork.

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Sildenafil EP Impurity A chemical structure
CAS number1391053-95-4
FormulaC23H32N6O4S
Molar mass488.6 g/mol
Physical formSolid
HS code38229090
InChIKeyMDDMCAQUTIFYAH-UHFFFAOYSA-N
IUPAC name5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-(2-methylpropyl)-6H-pyrazolo[4,5-d]pyrimidin-7-one

About Sildenafil EP Impurity A

Analytical teams working on Sildenafil use Sildenafil EP Impurity A as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 1391053-95-4, formula C23H32N6O4S and molar mass 488.6 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Sildenafil

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

Sildenafil 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 Sildenafil EP Impurity A
Product nameSildenafil EP Impurity A
Catalogue numberZX-022765
CAS number1391053-95-4
IUPAC name5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-(2-methylpropyl)-6H-pyrazolo[4,5-d]pyrimidin-7-one
Molecular formulaC23H32N6O4S
Molar mass488.6 g/mol
Exact mass488.2206
GradeReference Standard
Physical formSolid
XLogP31.9
H-bond donors / acceptors1 / 8
Topological polar surface area118 Ų
HS code38229090
InChIKeyMDDMCAQUTIFYAH-UHFFFAOYSA-N
SMILESCCOC1=C(C=C(C=C1)S(=O)(=O)N2CCN(CC2)C)C3=NC4=C(C(=O)N3)N(N=C4CC(C)C)C
PubChem CID135565336
SynonymsSildenafil Citrate - Impurity A, Isobutyl Sildenafil, Despropyl isobutyl sildenafil, Sildenafil Impurity A, Sildenafil A, Isomer of Isobutyl Sildenafil

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Sildenafil 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 Sildenafil EP Impurity A

Which CAS number identifies Sildenafil EP Impurity A?
Sildenafil EP Impurity A is registered under CAS 1391053-95-4. You may also see it listed as Sildenafil Citrate - Impurity A, Isobutyl Sildenafil, Despropyl isobutyl sildenafil. Our catalogue number for this item is ZX-022765.
What are the formula and molar mass of Sildenafil EP Impurity A?
For Sildenafil EP Impurity A, its formula is C23H32N6O4S and its molar mass is 488.6 g/mol. The systematic (IUPAC) name is 5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-(2-methylpropyl)-6H-pyrazolo[4,5-d]pyrimidin-7-one. InChIKey MDDMCAQUTIFYAH-UHFFFAOYSA-N lets you match it in any structure database.
How is Sildenafil EP Impurity A used in pharmaceutical QC?
Sildenafil EP Impurity A is a characterised reference material linked to Sildenafil. 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 Sildenafil 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 Sildenafil 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 Sildenafil EP Impurity A to my country?
Yes. Sildenafil EP Impurity A ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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