Azintamide Impurity 1 CAS 3916-78-7
| CAS No. | 3916-78-7 |
| Molecular Formula | C4H3ClN2S |
| Molecular Weight | 146.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Azintamide Impurity 1 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Azintamide Impurity 1 (CAS 3916-78-7, C4H3ClN2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C4H3ClN2S, Azintamide Impurity 1 contains a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 146.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C4H3ClN2S |
| Molecular Weight | 146.60 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Azintamide Standards
Recommended Standards
- 6-Chloropyrimidine-2(1H)-thione (CAS 63096-74-2)
- 2-Chloro-2-methylcyclohexan-1-one (CAS 10409-46-8)
- 2(1H)-pyrimidinethione, 5-chloro- (9ci) (CAS 34772-97-9)
- Cyclopentylacetyl chloride (CAS 1122-99-2)
- Acalabrutinib Impurity 1 (CAS CATO-C4X-30551)
- Rimegepant Impurity 88 (CAS CATO-C4X-248788)
- Empagliflozin Impurity 299 (CAS CATO-C4X-1065299)
- 2-(4-((4-Bromophenyl)sulfonyl)piperazin-1-yl)-N,N,6-trimethylpyrimidin-4-amine (CAS 946315-29-3)
- 4-(Dimethylamino)pyridine-3-carbaldehyde (CAS 90006-87-4)
- 1,2-Dimethoxy-4-(methylsulfonyl)benzene (CAS 33951-30-3)
- (4-Butylphenyl)(furan-2-yl)methanone (CAS 73399-37-8)
- 1-Bromo-2-chloro-4-ethynyl-5-nitrobenzene (CAS 2062634-33-5)
- Octahydro-2,5-epiminopentalene (CAS 27797-61-1)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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