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API Reference Standards

Sildenafil Citrate

Reference StandardIn stock

Buy Sildenafil Citrate (CAS 171599-83-0) from Zemixal: C28H38N6O11S, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.

Pack sizes
Sildenafil Citrate chemical structure
CAS number171599-83-0
FormulaC28H38N6O11S
Molar mass666.7 g/mol
Physical formSolid
HS code38229090
InChIKeyDEIYFTQMQPDXOT-UHFFFAOYSA-N
IUPAC name5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one;2-hydroxypropane-1,2,3-tricarboxylic acid

About Sildenafil Citrate

Zemixal lists Sildenafil Citrate for laboratories that identify, quantify or control Sildenafil and its related substances. Identity at a glance (Reference Standard): CAS 171599-83-0, formula C28H38N6O11S and molar mass 666.7 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Identification & assay
  • Method development & validation
  • QC reference material

Safe handling

It carries the GHS signal word Warning (H302, H315, H319 and H320), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. Each lot travels with 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

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Sildenafil Citrate
Product nameSildenafil Citrate
Catalogue numberZX-006818
CAS number171599-83-0
Other CAS numbers139755-83-2
IUPAC name5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one;2-hydroxypropane-1,2,3-tricarboxylic acid
Molecular formulaC28H38N6O11S
Molar mass666.7 g/mol
Exact mass666.2319
GradeReference Standard
Physical formSolid
H-bond donors / acceptors5 / 15
Topological polar surface area250 Ų
HS code38229090
InChIKeyDEIYFTQMQPDXOT-UHFFFAOYSA-N
SMILESCCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C.C(C(=O)O)C(CC(=O)O)(C(=O)O)O
PubChem CID135413523
SynonymsActra-Rx, Alisiga, Apodefil, Caverta 100, Edegra, Granpidam, Kamagra, Maxifort, Mysildecard, Niagra Actra-Rx Penegra, Sildegra, Sildigra

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H320Causes eye irritation
  • H335May cause respiratory irritation
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

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 Sildenafil Citrate
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Citrate

Which CAS number identifies Sildenafil Citrate?
Sildenafil Citrate is registered under CAS 171599-83-0. You may also see it listed as Actra-Rx, Alisiga, Apodefil. Our catalogue number for this item is ZX-006818.
What are the formula and molar mass of Sildenafil Citrate?
For Sildenafil Citrate, its formula is C28H38N6O11S and its molar mass is 666.7 g/mol. InChIKey DEIYFTQMQPDXOT-UHFFFAOYSA-N lets you match it in any structure database.
How is Sildenafil Citrate used in pharmaceutical QC?
Sildenafil Citrate 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 Citrate?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Sildenafil Citrate?
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 Citrate to my country?
Yes. Because Sildenafil Citrate 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.

Other grades with CAS 171599-83-0

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