1-(2,5-Dichlorobenzyl)-3-methyl-1H-pyrazole-5-carbohydrazide CAS 618070-45-4
| CAS No. | 618070-45-4 |
| Molecular Formula | C12H12Cl2N4O |
| Molecular Weight | 299.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(2,5-Dichlorobenzyl)-3-methyl-1H-pyrazole-5-carbohydrazide (CAS 618070-45-4), molecular formula C12H12Cl2N4O and molecular weight 299.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(2,5-Dichlorobenzyl)-3-methyl-1H-pyrazole-5-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 299.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12Cl2N4O |
| Molecular Weight | 299.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichlorobenzyl Standards
- Ethyl 1-(3,4-dichlorobenzyl)-1H-imidazole-4-carboxylate (CAS 1260810-25-0)
- 1-(2,6-Dichlorobenzyl)-3,5-dimethyl-1h-pyrazole-4-carboxylic acid (CAS 926205-09-6)
- 3-((2,4-Dichlorobenzyl)thio)-6-methylpyridazine (CAS 5273-47-2)
- 1-(3,4-Dichlorobenzyl)-3,5-dimethyl-4-nitro-1H-pyrazole (CAS 333444-53-4)
- Ethyl 2-(2,6-Dichlorobenzyl)oxazole-4-carboxylate (CAS 2070896-59-0)
- Ethyl 5-(2,4-dichlorobenzyl)oxazole-4-carboxylate (CAS 888739-18-2)
- 1-(2,4-Dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 242797-28-0)
- 1-(2,6-Dichlorobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 338754-23-7)
Recommended Standards
- 1-(2,4-Dichlorophenyl)-N,N,5-trimethyl-1H-1,2,4-triazole-3-carboxamide (CAS 338398-18-8)
- 1-(2,5-Dichlorophenyl)-N,N,5-trimethyl-1H-1,2,4-triazole-3-carboxamide (CAS 338398-56-4)
- (E)-3-(5-bromo-2-isobutoxyphenyl)acrylic acid (CAS 937599-32-1)
- 1-(2-Bromo-4-nitrophenyl)azepane (CAS 477846-52-9)
- [(Z)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-3-enyl] 4-methylbenzenesulfonate (CAS 2746332-53-4)
- 2-(5-Bromo-2-methylphenyl)acetic Acid (CAS 854646-94-9)
- 3-Morpholinobenzanthrone (CAS 299927-47-2)
- 1,2,4-Triazine-3-carboxylic acid (CAS 6498-04-0)
- 2-(4-(2,2,2-Trifluoroethyl)phenyl)acetic acid (CAS 1393561-66-4)
- Didanosine EP Impurity F (CAS 42867-68-5)
- 3-amino-3-(3,5-dichlorophenyl)-2,2-difluoropropanoic acid hydrochloride (CAS 1955515-25-9)
- 3-Hydroxy-2,2-dimethylhexyl butyrate (CAS 85508-25-4)
- 2-(6-Amino-4-(aminomethyl)-5-(difluoromethyl)pyridin-3-yl)acetic acid (CAS 1805232-38-5)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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