Tadalafil Impurity 85 CAS 7479-05-2
| CAS No. | 7479-05-2 |
| Molecular Formula | C13H16N2O2 |
| Molecular Weight | 232.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tadalafil Impurity 85 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Tadalafil Impurity 85 (CAS 7479-05-2), a pharmacopoeial impurity reference standard (molecular formula C13H16N2O2, MW 232.28 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Tadalafil Impurity 85 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C13H16N2O2 |
| Molecular Weight | 232.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 2 |
Related Tadalafil Standards
- Tadalafil Impurity 164 (CAS 58979-02-5)
- Tadalafil Impurity 113 (CAS 68807-89-6)
- Tadalafil Impurity 29 (CAS CATO-C4X-1087129)
- Tadalafil Impurity N27 (CAS 21753-16-2)
- Tadalafil Impurity 117 (CAS CATO-C4X-1087117)
- Tadalafil Impurity 119 (CAS CATO-C4X-1087119)
- Tadalafil Impurity 161 (CAS CATO-C4X-1087161)
- Tadalafil Impurity 55 (CAS 2280-01-5)
Recommended Standards
- 1,4-Butanedisulfonic Acid Monomethyl Ester (CAS CATO-C3D-5755)
- Vildagliptin Impurity 49 (CAS CATO-C4X-110049)
- 3-Cyano-4-isopropoxy-N,N-dimethylbenzamide (CAS CATO-C3D-263042)
- Terfenadine impurity 3 (CAS 162096-56-2)
- Mianserin impurity 28 (CAS 173548-01-1)
- Perindopril Impurity 108 (CAS CATO-C4X-1252108)
- Benidipine Impurity 7 (CAS 74936-81-5)
- 4-Chloro-2-(methylthio)pyrimidine-5-carbaldehyde (CAS 148256-82-0)
- 1-Hydroxymethyl-5,5-dimethylhydantoin (CAS 116-25-6)
- (2S,4S)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-(((allyloxy)carbonyl)amino)pyrrolidine-2-carboxylic acid (CAS 274676-10-7)
- 1-Benzyl-3-cyclopropyl-1H-pyrazole-5-carboxylic acid (CAS 1239785-16-0)
- 2-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-N-(2,4-dimethylphenyl)acetamide (CAS 478042-38-5)
- Olopatadine Impurity 42 Formate (CAS CATO-C4X-171842)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com