3-Bromo-s-triazolo[3,4-α]phthalazine CAS 21537-95-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21537-95-1 |
| Molecular Formula | C9H5BrN4 |
| Molecular Weight | 249.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 3-Bromo-s-triazolo[3,4-α]phthalazine (CAS 21537-95-1) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C9H5BrN4. Molecular weight: 249.07 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C9H5BrN4 |
| Molecular Weight | 249.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Bromo Standards
- 2-(4-Bromo-1H-pyrazol-1-yl)isonicotinonitrile (CAS 1183746-57-7)
- 1-Bromo-6-trifluoromethoxy-hexane (CAS 1246466-39-6)
- 5-Bromo-1-(pyridin-2-yl)-1H-pyrazole-4-carbonitrile (CAS 1269290-97-2)
- 5-Bromo-1-(pyridin-4-yl)-1H-pyrazole-4-carbonitrile (CAS 1269291-02-2)
- 1-Bromo-2,2-dimethyl-3-(2,2,2-trifluoroethoxy)propane (CAS 1498165-32-4)
- [3-Bromo-5-(dimethylamino)-1H-1,2,4-triazol-1-yl]acetic acid (CAS 1674390-10-3)
- 2-Bromo-6-(2H-1,2,3-triazol-2-yl)benzonitrile (CAS 2091692-01-0)
- 6-Bromo-4-hydroxyquinoline-8-carbonitrile (CAS 1160474-80-5)
Recommended Standards
- 3-Iodopropane-1-sulfonamide (CAS 88497-02-3)
- 2,7-Dichloro-4-nitrobenzo[d]thiazole (CAS 70200-88-3)
- 3-Nitrophenylboronic Acid Pinacol Ester (CAS 68716-48-3)
- Methyl 3-amino-2-[(4-methylphenyl)methyl]propanoate hydrochloride (CAS 1258651-97-6)
- 3-(tert-Butyl)-1-(heptan-2-yl)-1H-pyrazol-5(4H)-one (CAS 864685-48-3)
- 5-Methyl-2-(4-pyridinyl)-1,3-thiazol-4-ol (CAS 70547-50-1)
- (1-Aminocycloheptyl)methanol (CAS 814254-62-1)
- Nintedanib Impurity 56 (CAS CATO-C4X-181456)
- [S(R)]-N-[(1S)-1-[2-(Dicyclohexylphosphino)phenyl]ethyl]-N,2-dimethyl-2-propanesulfinamide (CAS 2253984-97-1)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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 13829788188 / jacky.chen@cato-chem.com