Tadalafil Impurity 108 CAS 771-39-1
| CAS No. | 771-39-1 |
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tadalafil Impurity 108 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.
Tadalafil Impurity 108 (CAS 771-39-1), molecular formula C8H6N2O2 and molecular weight 162.15 g/mol, is a CATO reference standard with documented purity and traceability.
Tadalafil Impurity 108 (C8H6N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related Tadalafil Standards
- Tadalafil Impurity 79 (CAS 38082-70-1)
- Tadalafil Impurity 106 (CAS 23126-68-3)
- Tadalafil Impurity 101 (CAS 20850-43-5)
- 【禁售不询】Tadalafil Impurity 43 (CAS 120-57-0)
- Tadalafil Impurity 53 (CAS 23170-77-6)
- Tadalafil Impurity 136 (CAS 52302-45-1)
- Tadalafil Impurity 137 (CAS 859964-45-7)
- Tadalafil Impurity 10 (CAS 100077-49-4)
Recommended Standards
- Quinoxaline-5,8(1H,4H)-dione (CAS 75074-88-3)
- trans R-138727, (Prasugrel Metabolite) Hydrochloride(Mixture of Diastereomers)DISCONTINUED. Please see R070195 (CAS 204204-72-8)
- Quinoxaline-5,7-diol (CAS 858479-18-2)
- 53051-82-4 Diethyl (1,2-~13~C_2_)propanedioate DTXSID30745831 (CAS 53051-82-4)
- 2-Fluoro-N-(4-hydroxy-2-methylphenyl)benzamide (CAS 791832-43-4)
- 3-(2-Bromophenyl)isoxazole-5-carbaldehyde (CAS 869496-61-7)
- 5-Amino-1-(4-fluorophenyl)-1,5-dihydro-4h-pyrazolo[3,4-d]pyrimidin-4-one (CAS 941868-16-2)
- 2-(Aminomethyl)spiro[3.3]heptane-2-carboxylic acid (CAS 1478268-23-3)
- cis-4-fluorocyclohexane-1-carbaldehyde (CAS 2306250-04-2)
- 3-Bromo-9H-fluoren-2-amine (CAS 105901-11-9)
- (S)-2-Ethyl-1-methylpiperazine dihydrochloride (CAS 1777812-91-5)
- PPDA (CAS 684283-16-7)
- 2-(2-(3,4,5-Trimethoxyphenyl)thiazol-4-yl)acetic acid (CAS 927973-63-5)
- Stresscopin-Related Peptide (human) (CAS 348626-74-4)
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