1-(4-Methoxybenzyl)-4-nitro-1H-pyrazole CAS 1174665-61-2
| CAS No. | 1174665-61-2 |
| Molecular Formula | C11H11N3O3 |
| Molecular Weight | 233.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(4-Methoxybenzyl)-4-nitro-1H-pyrazole (CAS 1174665-61-2), molecular formula C11H11N3O3 and molecular weight 233.22 g/mol, is a CATO reference standard with documented purity and traceability.
1-(4-Methoxybenzyl)-4-nitro-1H-pyrazole (C11H11N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H11N3O3 |
| Molecular Weight | 233.22 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 methanol, ethanol, DMSO |
| 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.) | 1989 |
| Nitrogen Atoms | 3 |
Related Methoxybenzyl Standards
- 1-(2-Methoxybenzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1280632-30-5)
- 1-(3-Methoxybenzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1340963-83-8)
- 1-(4-Methoxybenzyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 716361-79-4)
- 2-(4-Methoxybenzyl)oxazole-4-carboxylic Acid (CAS 852639-66-8)
- 4-Methoxybenzyl 2,2,2-trifluoroacetimidate (CAS 212051-17-7)
- 1-(2-Methoxybenzyl)piperidine-2,4-dione (CAS 1543082-97-8)
- 1-(4-Methoxybenzyl)piperidine-2,4-dione (CAS 712353-75-8)
- 1-(1-(4-Methoxybenzyl)-1H-1,2,3-triazol-4-yl)ethan-1-ol (CAS 1385031-87-7)
Recommended Standards
- 5-(aminocarbonyl)-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 1156075-93-2)
- 5-[(4-aminophenoxy)methyl]-2-furoic acid (CAS 1184060-24-9)
- 1,3-dimethyl-5-(pyridin-3-yloxy)-1H-pyrazole-4-carboxylic acid (CAS 1152561-56-2)
- 4-Fluoro-3-methanesulfonamidobenzoic acid (CAS 1184452-50-3)
- 1,4-Di((e)-styryl)benzene (CAS 1608-30-6)
- 4-N-cyclopentyl-4-N-ethylpyrimidine-2,4-diamine (CAS 1512107-90-2)
- tert-butyl N-[(1R,2R)-2-aminocyclopentyl]carbamate (CAS 1016971-66-6)
- 1-(Chloromethyl)-3-(difluoromethoxy)benzene (CAS 42145-45-9)
- 7-Chloro-4-(methylthio)-2,3-dihydrobenzo[b][1,4]thiazepine (CAS 130336-76-4)
- 6-((Cyclohexylmethyl)imino)-1,6-dihydropyridine-3-carboxylic acid (CAS 1096898-79-1)
- (6-Methoxypyrimidine-2,4-diyl)dimethanol (CAS 1333222-16-4)
- Pretomanid-4d (CAS 1346617-34-2)
- 2-(Boc-amino)-1-[2-(4-fluorophenyl)-8,8-dimethyl-5,6-dihydroimidazo[1,2-a]pyrazin-7(8H)-yl]ethanone (CAS 1261118-05-1)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com