4-Chloro-2-(4-chlorophenyl)pyrazolo[1,5-a]pyrazine CAS 1255784-46-3
| CAS No. | 1255784-46-3 |
| Molecular Formula | C12H7Cl2N3 |
| Molecular Weight | 264.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2-(4-chlorophenyl)pyrazolo[1,5-a]pyrazine (CAS 1255784-46-3), molecular formula C12H7Cl2N3 and molecular weight 264.11 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H7Cl2N3, 4-Chloro-2-(4-chlorophenyl)pyrazolo[1,5-a]pyrazine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 264.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures 4-Chloro-2-(4-chlorophenyl)pyrazolo[1,5-a]pyrazine 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.
Physical & Chemical Properties
| Molecular Formula | C12H7Cl2N3 |
| Molecular Weight | 264.11 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 7-Chloro-3-(2-chlorophenyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 1019918-88-7)
- 4-Chloro-2-(3-chlorophenyl)pyrazolo[1,5-a]pyrazine (CAS 1326816-77-6)
- 1365962-70-4 2-Chloro-N-(2-chloro-4,6-dimethoxyphenyl)acetamide MFCD22056660 (CAS 1365962-70-4)
- 6-Chloro-2-(4-chlorophenyl)imidazo[1,2-b]pyridazine (CAS 1844-56-0)
- (4-Chloro-phenyl)-(6-chloro-pyridazin-3-yl)-acetonitrile (CAS 339008-49-0)
- 2-Chloro-n-(4-chloro-2,5-dimethoxyphenyl)acetamide (CAS 448250-64-4)
- 2-Chloro-N-(5-chloro-2,4-dimethoxyphenyl)acetamide (CAS 23543-12-6)
- 3-Chloro-2-(4-chlorophenyl)imidazo[1,2-a]pyrimidine (CAS 439110-68-6)
Recommended Standards
- 4-(Boc-amino)-2,6-dichloropyrimidine (CAS 1244949-72-1)
- 2-(2,6-Dichlorophenyl)-1H-imidazo[4,5-c]pyridine (CAS 1283261-83-5)
- 4-bromo-N-(2,2-difluoroethyl)-2,6-dimethylaniline (CAS 1184637-63-5)
- 4-(3,5-dichlorophenoxy)benzonitrile (CAS 1153351-34-8)
- Methyl 5-amino-2-ethylbenzoate (CAS 103095-32-5)
- Vortioxetine Impurity 37 (CAS 1446751-00-3)
- (R)-2-Amino-4,4-difluorobut-3-en-1-ol (CAS 2923011-56-5)
- 4-Iodo-2-isopropyl-1-methyl-1H-imidazole (CAS 851870-24-1)
- (2-(Methylsulfonyl)-4-(trifluoromethyl)phenyl)methanol (CAS 225502-40-9)
- Isopropyl 6-isopropylnicotinate (CAS 95204-05-0)
- 2-(Pyrimidin-4-yl)nicotinic acid (CAS 1429555-05-4)
- spiro[2.3]hexan-5-ol (CAS 20054-19-7)
- 6-Methyl-3-aza-bicyclo[4.1.0]heptane (CAS 910854-91-0)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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