1-Benzyl-4-ethynyl-1H-pyrazole CAS 905751-62-4
| CAS No. | 905751-62-4 |
| Molecular Formula | C12H10N2 |
| Molecular Weight | 182.22 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 1-Benzyl-4-ethynyl-1H-pyrazole.
CATO supplies 1-Benzyl-4-ethynyl-1H-pyrazole (CAS 905751-62-4), a certified reference material (molecular formula C12H10N2, MW 182.22 g/mol) for analytical method development and quality control.
Structurally, 1-Benzyl-4-ethynyl-1H-pyrazole (C12H10N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 182.22 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C12H10N2 |
| Molecular Weight | 182.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1987 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 1-Amino-N,N-diethyl-1H-pyrazole-5-carboxamide (CAS 215610-28-9)
- 1-Cyclopropyl-1H-indole-5-carbonitrile (CAS 256936-19-3)
- 1-Amino-4-methyl-2-propyl-1H-imidazole-5-carboxamide (CAS 865444-89-9)
- 1-ethenyl-2-oxabicyclo[2.2.2]octane-4-carboxylic acid (CAS 340023-04-3)
- Methyl 3-(3-bromophenyl)-1H-pyrazole-5-carboxylate (CAS 1148158-89-7)
- 898788-40-4 (4-Methoxyphenyl){3-[(4-methylpiperazin-1-yl)methyl]phenyl}methanone DTXSID60643412 (CAS 898788-40-4)
- 4-Phenylpyrrolidin-3-ol (CAS 97382-93-9)
- Ethyl 2-(3,5-Dimethoxyphenyl)acetate (CAS 65976-77-4)
- 2-(Methylamino)-5-nitrobenzene-1-sulfonamide (CAS 62533-50-0)
- N-(2-isopropylphenyl)benzamide (CAS 93007-80-8)
- 2-(3-Chlorophenyl)propan-1-ol (CAS 63489-71-4)
- (2-Methylquinolin-4-yl)(piperazin-1-yl)methanone dihydrochloride (CAS 1221723-29-0)
- 5-Methyl-1-phenylhex-1-en-3-one (CAS 2892-18-4)
- Peptide 441 (CAS CATO-CPTD788441)
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