5-([1,1'-biphenyl]-4-yl)-1-(p-tolyl)-1h-pyrazole-3-carboxylic acid CAS 955972-89-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 955972-89-1 |
| Molecular Formula | C23H18N2O2 |
| Molecular Weight | 354.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-([1,1'-biphenyl]-4-yl)-1-(p-tolyl)-1h-pyrazole-3-carboxylic acid (CAS 955972-89-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C23H18N2O2. Molecular weight: 354.40 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C23H18N2O2 |
| Molecular Weight | 354.40 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 5-((4-(Ethyl(phenyl)carbamoyl)phenyl)amino)-5-oxopentanoic acid (CAS 941422-98-6)
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- 5-(4-Methylphenoxy)-1,3-diphenyl-1H-pyrazole-4-carbaldehyde (CAS 956360-80-8)
- ML 241 (CAS 1346528-06-0)
- Praseodymium(III)chloridehexahydrate (CAS 17272-46-7)
- H-Asp-Glu-OH (CAS 6157-06-8)
- 120225-64-1 4-[2-[[6-Amino-9-(N-ethyl-|A-D-ribofuranuronamidosyl)-9H-purin-2-yl]amino]ethyl]benzenepropanoic Acid Monosodium Salt CGS 21680C Sodium Salt (CAS 120225-64-1)
- (2-(4-Ethylpiperazin-1-yl)-5-(trifluoromethyl)phenyl)boronic acid (CAS 1704063-78-4)
- 3-Amino-6,7-dihydro-5h-cyclopenta[b]thieno[3,2-e]pyridine-2-carboxamide (CAS 165066-44-4)
- Semaglutide Impurity 1(OtBu-Ste-D-γGlu(OtBu)-AEEA-AEEA-OH) (CAS CATO-C4X-22261)
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