2-(2-(5-Oxo-1,3-diphenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzoic acid CAS 314757-85-2
| CAS No. | 314757-85-2 |
| Molecular Formula | C22H16N4O3 |
| Molecular Weight | 384.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-(5-Oxo-1,3-diphenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzoic acid (C22H16N4O3) contains a steroid core, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 2-(2-(5-Oxo-1,3-diphenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzoic acid (CAS 314757-85-2), a certified reference material (molecular formula C22H16N4O3, MW 384.39 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 2-(2-(5-Oxo-1,3-diphenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H16N4O3 |
| Molecular Weight | 384.39 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Oxo Standards
- N,2-Diphenyl-5-(1,2,4-triazaspiro[4.5]dec-3-en-3-yl)pyrimidin-4-amine (CAS 89983-93-7)
- 3,3-Diphenyl-N-((1-phenyl-1H-tetrazol-5-yl)methyl)propanamide (CAS 941963-79-7)
- Diphenyl adamantan-1-ylphosphoramidate (CAS 49802-24-6)
- N-(5,7-Diphenyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)furan-2-carboxamide (CAS 498570-03-9)
- Diphenyl (2,3-Dihydro-2-thioxo-3-benzoxazolyl)phosphonate (CAS 111160-56-6)
- 1,3-Diphenyl-1,8-dihydrodibenzo[b,f]pyrazolo[3,4-d]azepine (CAS 85008-87-3)
- Diphenyl-1-pyrenylphosphine (CAS 110231-30-6)
- 5,12-Diphenyl-5,12-dihydroquinoxalino[2,3-b]quinoxaline (CAS 2361129-09-9)
Recommended Standards
- 2-(1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)-N-((2,4-dimethylphenyl)carbamoyl)acetamide (CAS 869471-49-8)
- 2,4,6-Tris(4-cyanophenyl)-1,3,5-triazine (CAS 6876-34-2)
- 1-(9-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)-3-(p-tolyl)urea (CAS 922713-81-3)
- 2,5-Bis(4-nitrophenyl)thiazolo[5,4-d]thiazole (CAS 4402-40-8)
- 2,4-Dichloropyrido[3,4-d]pyrimidine (CAS 908240-50-6)
- 2-(Tert-butoxy)-3-chloroaniline (CAS 1039941-34-8)
- (3R,4R)-3-fluorooxan-4-amine (CAS 1422188-14-4)
- 4-(Benzyloxy)-2-hydroxy-6-methylbenzoic acid (CAS 54102-37-3)
- 4-(2-Chloroethyl)piperazine-1-carboxamide (CAS 705941-91-9)
- (2-Ethoxybenzoyl)valine (CAS 1397003-37-0)
- 1-(3-Ethoxypropyl)-3-(1H-indol-3-yl)urea (CAS 941878-95-1)
- (E)-4-((2,6-dichlorophenyl)amino)-4-oxobut-2-enoic acid (CAS 37904-05-5)
- 8,9-Dichloro-2,3,4,4a-tetrahydro-1H,6H-pyrazino[1,2-a]quinoxalin-5-one hydrochloride (CAS 276695-22-8)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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