4-Hydroxy-2-[(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)sulfonyl]-4-sulfobiphenyl-3-carboxylic acid CAS 352022-94-7
| CAS No. | 352022-94-7 |
| Molecular Formula | C17H14N2O9S2 |
| Molecular Weight | 454.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 4-Hydroxy-2-[(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)sulfonyl]-4-sulfobiphenyl-3-carboxylic acid (CAS 352022-94-7), a certified reference material (molecular formula C17H14N2O9S2, MW 454.43 g/mol) for analytical method development and quality control.
Structurally, 4-Hydroxy-2-[(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)sulfonyl]-4-sulfobiphenyl-3-carboxylic acid (C17H14N2O9S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 454.43 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C17H14N2O9S2 |
| Molecular Weight | 454.43 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- 4-Hydroxydibenzothiophene (CAS 24444-75-5)
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- (S)-2-(Boc-amino)-4-penten-1-ol (CAS 116613-81-1)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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