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Metabolites & Degradation Products

N-Desmethyl Tadalafil

Reference StandardAvailable on request

N-Desmethyl Tadalafil (CAS 171596-36-4) supplier Zemixal. Request a quote with price, lead time and documents. Exported from India with full paperwork.

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N-Desmethyl Tadalafil chemical structure
CAS number171596-36-4
FormulaC21H17N3O4
Molar mass375.4 g/mol
Physical formSolid
HS code38229090
InChIKeyXHDLVMPUSXRZOS-FOIQADDNSA-N
IUPAC name(2R,8R)-2-(1,3-benzodioxol-5-yl)-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione

About N-Desmethyl Tadalafil

N-Desmethyl Tadalafil is supplied by Zemixal as a characterised reference material for Tadalafil analysis. Identity at a glance (Reference Standard): CAS 171596-36-4, formula C21H17N3O4 and molar mass 375.4 g/mol. It is handled as a solid.

Where it is used

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of N-Desmethyl Tadalafil
Product nameN-Desmethyl Tadalafil
Catalogue numberZX-027078
CAS number171596-36-4
IUPAC name(2R,8R)-2-(1,3-benzodioxol-5-yl)-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione
Molecular formulaC21H17N3O4
Molar mass375.4 g/mol
Exact mass375.1219
GradeReference Standard
Physical formSolid
XLogP32.1
H-bond donors / acceptors2 / 4
Topological polar surface area83.7 Ų
HS code38229090
InChIKeyXHDLVMPUSXRZOS-FOIQADDNSA-N
SMILESC1[C@@H]2C(=O)NCC(=O)N2[C@@H](C3=C1C4=CC=CC=C4N3)C5=CC6=C(C=C5)OCO6
PubChem CID9820973
SynonymsNor-Tadalafil, (+)-Nortadalafil, Demethyl Tadalafil, Desmethyltadalafil (Nortadalafil), Tadalafil-Nor, Desmethyl Tadalafil

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

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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 N-Desmethyl Tadalafil
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 N-Desmethyl Tadalafil

Which CAS number identifies N-Desmethyl Tadalafil?
N-Desmethyl Tadalafil is registered under CAS 171596-36-4. You may also see it listed as Nor-Tadalafil, (+)-Nortadalafil, Demethyl Tadalafil. Our catalogue number for this item is ZX-027078.
What are the formula and molar mass of N-Desmethyl Tadalafil?
For N-Desmethyl Tadalafil, its formula is C21H17N3O4 and its molar mass is 375.4 g/mol. The systematic (IUPAC) name is (2R,8R)-2-(1,3-benzodioxol-5-yl)-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione. InChIKey XHDLVMPUSXRZOS-FOIQADDNSA-N lets you match it in any structure database.
How is N-Desmethyl Tadalafil used in pharmaceutical QC?
N-Desmethyl 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 N-Desmethyl Tadalafil?
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 N-Desmethyl 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 N-Desmethyl Tadalafil to my country?
Yes. Because N-Desmethyl 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.

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