1H-Pyrazole, 1-(2,5-dichlorophenyl)-3-methyl- CAS 99360-59-5
| CAS No. | 99360-59-5 |
| Molecular Formula | C10H8BrClN2 |
| Molecular Weight | 271.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1H-Pyrazole, 1-(2,5-dichlorophenyl)-3-methyl-.
1H-Pyrazole, 1-(2,5-dichlorophenyl)-3-methyl- (CAS 99360-59-5) is a high-purity analytical reference standard with the molecular formula C10H8BrClN2 and a molecular weight of 271.54 g/mol.
The molecular framework of 1H-Pyrazole, 1-(2,5-dichlorophenyl)-3-methyl- (C10H8BrClN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1H-Pyrazole, 1-(2,5-dichlorophenyl)-3-methyl- 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 | C10H8BrClN2 |
| Molecular Weight | 271.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related H Standards
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- 1H-Pyrazole-4-carboxylic acid, 3,5-dibromo- (CAS 98026-81-4)
- 1H-Pyrazole-3-carboxylic acid, 1-(2-carboxyphenyl)-4-methyl-, 3-ethyl ester (CAS 2007920-58-1)
- 1H-Pyrazole, 4-bromo-3-nitro-1-(tetrahydro-2H-pyran-2-yl)- (CAS 1235407-33-6)
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Recommended Standards
- 1-(4-Bromo-3-methylphenyl)-4-chloro-1H-pyrazole (CAS 2379321-99-8)
- 3-bromo-6-chloro-4-methoxy-1H-pyrazolo[3,4-d]pyrimidine (CAS 2445214-69-5)
- 7-Bromo-2-(2-chloroethyl)quinazoline (CAS 1935427-67-0)
- 6-Bromo-1-chloro-2-methoxynaphthalene (CAS 92455-04-4)
- 3-Amino-N-(2-chlorophenyl)-4-(trifluoromethyl)-5,6,7,8,9,10-hexahydrocycloocta[b]thieno[3,2-e]pyridine-2-carboxamide (CAS 626228-06-6)
- 1-Ethyl-5-nitro-1h-pyrazole-3-carboxylic acid (CAS 1245806-48-7)
- 5-Bromo-2-[(4-methylbenzyl)oxy]benzaldehyde (CAS 426224-20-6)
- 2-Chloro-6-morpholinopyrimidine-4-carboxylic acid (CAS 263270-40-2)
- 2-(2-Fluorophenoxy)-N-(2-(4-fluorophenoxy)ethyl)propanamide (CAS 1105209-47-9)
- 7-Amino-5-fluoroquinolin-8-ol (CAS 18472-07-6)
- 3-Amino-1-(1-methyl-1h-pyrazol-4-yl)pyrrolidin-2-one (CAS 1247359-59-6)
- 1-(3-Iodopyridin-4-yl)ethan-1-one (CAS 1312933-08-6)
- Dextromethorphan Impurity 3-methoxy-17-methyl-morphinan-10β-ol Formic acid (CAS 120442-81-1（free base）)
- Neuropeptide AF (human) (CAS 192387-38-5)
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