1-[(2-Methylphenyl)methyl]-4-nitro-1h-pyrazole CAS 898053-40-2
| CAS No. | 898053-40-2 |
| Molecular Formula | C11H11N3O2 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-[(2-Methylphenyl)methyl]-4-nitro-1h-pyrazole (C11H11N3O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
1-[(2-Methylphenyl)methyl]-4-nitro-1h-pyrazole (CAS 898053-40-2), molecular formula C11H11N3O2 and molecular weight 217.22 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.
CATO manufactures 1-[(2-Methylphenyl)methyl]-4-nitro-1h-pyrazole 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 | C11H11N3O2 |
| Molecular Weight | 217.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Methylphenyl Standards
- 1-[(4-Methylphenyl)methyl]-3-nitro-1h-pyrazole (CAS 1001510-36-6)
- [5-(4-Methylphenyl)isoxazol-3-yl]acetic acid (CAS 1018663-09-6)
- 5-Methyl-2-(3-methylphenyl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 112630-40-7)
- 1-[(2-Methylphenyl)methyl]-3-nitro-1h-pyrazole (CAS 512809-17-5)
- 1-[(3-Methylphenyl)methyl]-3-nitro-1h-pyrazole (CAS 956358-68-2)
- 1-[(4-methylphenyl)methyl]-4-nitro-1h-imidazole (CAS 903821-75-0)
- 1-[(4-Methylphenyl)methyl]-4-nitro-1h-pyrazole (CAS 400877-60-3)
- 5-Methyl-1-(3-methylphenyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 210159-14-1)
Recommended Standards
- 1,8-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 37041-23-9)
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- 1,6-Dimethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 51726-43-3)
- 1-Allyl-3-(benzo[d]oxazol-6-yl)urea (CAS 860785-09-7)
- imidazo[1,2-a]pyrazine-6-carboxylic acid (CAS 788819-82-9)
- 3-Morpholin-4-ylpyrrolidine-2,5-dione (CAS 691380-55-9)
- 1-Acetyl-4,5-dihydro-1H-pyrrole-2-carboxylic acid (CAS 81929-30-8)
- 7-methoxy-3,4-dihydroisoquinolin-6-ol hydrochloride (CAS 4602-78-2)
- 5-Bromo-2-cyclopropyl-3-methoxypyridine (CAS 1241752-52-2)
- (1r)-1-(3-Bromo-4-methoxyphenyl)ethan-1-ol (CAS 1212173-31-3)
- 4-(3-Methylbutanoyl)-1H-pyrrole-2-carboxylic acid (CAS 478259-56-2)
- 5-chloro-3,3-dimethyl-2,3-dihydro-1H-isoindol-1-one (CAS 1440519-63-0)
- 4,4-Difluoro-2,2-dimethylpiperidine (CAS 1783923-46-5)
- (Asp28)-Exenatide trifluoroacetate salt (CAS 1678417-24-7)
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