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API Reference Standards

Tadalafil

Reference StandardIn stock

Tadalafil (CAS 171596-29-5) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Part of our API Reference Standards range.

Pack sizes
Tadalafil chemical structure
CAS number171596-29-5
FormulaC22H19N3O4
Molar mass389.4 g/mol
Physical formSolid
HS code38229090
InChIKeyWOXKDUGGOYFFRN-IIBYNOLFSA-N
IUPAC name(2R,8R)-2-(1,3-benzodioxol-5-yl)-6-methyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione

About Tadalafil

Zemixal lists Tadalafil for laboratories that identify, quantify or control Tadalafil and its related substances. Identity at a glance (Reference Standard): CAS 171596-29-5, formula C22H19N3O4 and molar mass 389.4 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Hazard communication follows GHS (Warning: H302, H312, H315 and H319). Our SDS lists exposure controls and first-aid measures.

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 Tadalafil

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

Tadalafil standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of Tadalafil
Product nameTadalafil
Catalogue numberZX-006837
CAS number171596-29-5
IUPAC name(2R,8R)-2-(1,3-benzodioxol-5-yl)-6-methyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione
Molecular formulaC22H19N3O4
Molar mass389.4 g/mol
Exact mass389.1376
GradeReference Standard
Physical formSolid
XLogP32.3
H-bond donors / acceptors1 / 4
Topological polar surface area74.9 Ų
HS code38229090
InChIKeyWOXKDUGGOYFFRN-IIBYNOLFSA-N
SMILESCN1CC(=O)N2[C@@H](C1=O)CC3=C([C@H]2C4=CC5=C(C=C4)OCO5)NC6=CC=CC=C36
PubChem CID110635
SynonymsPentadafil, Talmanco, Tardenafil, Tildenafil, Zydalis, IC-351, Tadalafil mylan, Trans-tadalafil, IC 351, ICOS 351, Tadalafil Lilly, Cialis (TN)

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
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, 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 Tadalafil
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 Tadalafil

Which CAS number identifies Tadalafil?
Tadalafil is registered under CAS 171596-29-5. You may also see it listed as Pentadafil, Talmanco, Tardenafil. Our catalogue number for this item is ZX-006837.
What are the formula and molar mass of Tadalafil?
For Tadalafil, its formula is C22H19N3O4 and its molar mass is 389.4 g/mol. The systematic (IUPAC) name is (2R,8R)-2-(1,3-benzodioxol-5-yl)-6-methyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione. InChIKey WOXKDUGGOYFFRN-IIBYNOLFSA-N lets you match it in any structure database.
How is Tadalafil used in pharmaceutical QC?
Tadalafil is a characterised reference material linked to Tadalafil. 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 Tadalafil?
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 Tadalafil?
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 Tadalafil to my country?
Yes. Because Tadalafil 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 171596-29-5

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