1-(2-Chlorobenzyl)-1,2-dihydro-3H-indazol-3-one CAS 10309-63-4
| CAS No. | 10309-63-4 |
| Molecular Formula | C12H20O3 |
| Molecular Weight | 212.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(2-Chlorobenzyl)-1,2-dihydro-3H-indazol-3-one (CAS 10309-63-4), molecular formula C12H20O3 and molecular weight 212.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(2-Chlorobenzyl)-1,2-dihydro-3H-indazol-3-one (C12H20O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 212.29 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 1-(2-Chlorobenzyl)-1,2-dihydro-3H-indazol-3-one 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.
Physical & Chemical Properties
| Molecular Formula | C12H20O3 |
| Molecular Weight | 212.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
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- N-(3-chlorobenzyl)-2-(methylamino)acetamide (CAS 1153348-00-5)
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- N1-(2-Chlorobenzyl)-N1-ethylethane-1,2-diamine (CAS 61694-80-2)
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Recommended Standards
- tert-butyl 7-amino-5-azaspiro[2.4]heptane-5-carboxylate (CAS 1026609-83-5)
- (2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(5-cyano-4-nitro-1H-imidazol-1-yl)tetrahydrofuran-3,4-diyl diacetate (CAS 10357-26-3)
- Irinotecan Impurity N1 (CAS 1026078-50-1)
- (1S,3S,5S)-2-Boc-2-azabicyclo[3.1.0]hexane-3-methylamine (CAS 1038509-56-6)
- (4-Chlorophenyl)(3,4-difluorophenyl)methanone (CAS 844885-01-4)
- 3-(Cyclopent-1-en-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1171892-59-3)
- 2-(2-Cyclohexylquinolin-4-yl)acetic acid (CAS 824935-04-8)
- BYS10- BP41 (CAS CATO-C3D-263283)
- N,N’-Bis-(4-chloro-benzyl)-malonamide (CAS 379254-86-1)
- 2-Chloro-4-cyclopropoxy-3-methylpyridine (CAS 1243481-61-9)
- 5-[[3-(3-Methyl-4-propoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]methylene]-4-oxo-2-thioxo-3-thiazolidinebutanoic acid (CAS 1007530-40-6)
- Clotrimazole Impurity 25 (CAS 3509-85-1)
- 2,6-Bis((R)-4-cyclohexyl-4,5-dihydrooxazol-2-yl)pyridine (CAS 2471850-55-0)
- Semaglutide Impurity 115 (CAS CATO-C4X-2226115)
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