2-(4-CHLOROPHENYL)-6,7-DIHYDROPYRAZOLO[1,5-A]PYRAZIN-4(5H)-ONE CAS 1552162-51-2
| CAS No. | 1552162-51-2 |
| Molecular Formula | C12H10ClN3O |
| Molecular Weight | 247.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H10ClN3O, 2-(4-CHLOROPHENYL)-6,7-DIHYDROPYRAZOLO[1,5-A]PYRAZIN-4(5H)-ONE contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.68 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.
2-(4-CHLOROPHENYL)-6,7-DIHYDROPYRAZOLO[1,5-A]PYRAZIN-4(5H)-ONE (CAS 1552162-51-2), molecular formula C12H10ClN3O and molecular weight 247.68 g/mol, is a CATO reference standard with documented purity and traceability.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H10ClN3O |
| Molecular Weight | 247.68 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related CHLOROPHENYL Standards
- 2-((2-Chlorophenyl)amino)benzoic acid (CAS 10166-39-9)
- 1-(2-(4-Chlorophenyl)-2-oxoethyl)pyridin-2(1H)-one (CAS 108664-55-7)
- 5-(4-Chlorophenyl)-1-vinyl-1H-pyrrole-2-carboxylic acid (CAS 131172-69-5)
- 1-(4-Chlorophenyl)-3-(pyridin-4-yl)urea (CAS 13208-60-1)
- 2-((4-Chlorophenyl)amino)benzoic acid (CAS 13278-35-8)
- Methyl 3-(3-chlorophenyl)picolinate (CAS 1344687-79-1)
- Methyl 3-(2-chlorophenyl)picolinate (CAS 1344688-10-3)
- 2-(3-Chlorophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1553713-01-1)
Recommended Standards
- 1-(6-(2-Chlorophenoxy)pyridin-3-yl)ethanone (CAS 1546175-37-4)
- 1-(6-(4-Chlorophenoxy)pyridin-3-yl)ethanone (CAS 1545165-13-6)
- 2-(2-Chlorophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1557293-41-0)
- (2E)-N-(4-Chlorophenyl)-3-(furan-2-yl)prop-2-enamide (CAS 15341-87-4)
- 3-Chloro-4-nitrobenzoyl Chloride (CAS 55737-29-6)
- Palladium dineodecanoate (CAS 68228-02-4)
- (1R,4R)-4-hydroxycyclopent-2-en-1-yl acetate (CAS 60410-17-5)
- N'-Hexanoyl-N'-(6-(1-hydroxy-2,5-dioxopyrrolidin-3-yl)-6-oxohexyl)-7-oxo-11-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)undecanehydrazide (CAS 1322625-23-9)
- 5-Nitrobenzofuran-2-carbaldehyde (CAS 23145-18-8)
- Silver(I) selenide (CAS 12002-86-7)
- tert-Butyl ((6-fluoro-4-formylpyridin-2-yl)methyl)carbamate (CAS 1393573-29-9)
- 2-(4-(Thiophen-3-yl)phenyl)acetic acid (CAS 108912-11-4)
- (S,R,S)-AHPC-PEG2-NH2 (dihydrochloride) (CAS 2341796-76-5)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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