4-(3-Heptadecyl-4-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid CAS 51929-92-1
| CAS No. | 51929-92-1 |
| Molecular Formula | C27H44N2O4S |
| Molecular Weight | 492.71 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.
CATO supplies 4-(3-Heptadecyl-4-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 51929-92-1), a certified reference material (molecular formula C27H44N2O4S, MW 492.71 g/mol) for analytical method development and quality control.
4-(3-Heptadecyl-4-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (C27H44N2O4S) contains a steroid core, an amide group, a sulfone 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).
As a certified reference material (CRM), 4-(3-Heptadecyl-4-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic 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 | C27H44N2O4S |
| Molecular Weight | 492.71 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Heptadecyl Standards
- 4-(3-Heptadecyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-3-methylbenzenesulfonic acid (CAS 63217-34-5)
- 3-Benzyl-2-heptadecyl-1-(2-hydroxyethyl)-4,5-dihydro-1H-imidazol-3-ium chloride (CAS 1452-34-2)
- 3-(3-(3-Heptadecyl-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)ureido)benzene-1-sulfonyl fluoride (CAS 23455-88-1)
- 3-(2-(2-Heptadecyl-4,5-dihydro-1H-imidazol-1-yl)ethoxy)propanoic acid (CAS 30342-62-2)
- 3-Heptadecyl-4-methyl-1-phenyl-1H-pyrazol-5(4H)-one (CAS 111989-07-2)
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Recommended Standards
- 3,4-Dichloro-N-((5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl)-N-(4-methoxyphenyl)benzamide (CAS 956368-40-4)
- Novaluron (CAS 116714-46-6)
- VPhos (CAS 1848244-75-6)
- Perospirone Impurity 16 (CAS CATO-C4X-245816)
- Ald-Ph-PEG4-Boc (CAS 1807518-64-4)
- 3-Ethyloxolan-3-ol (CAS 1340042-64-9)
- 4-Ethynyl-2-(trifluoromethyl)pyrimidine (CAS 37972-21-7)
- 2-Cyclopropyl-4-(piperazin-1-yl)-5,6,7,8-tetrahydroquinazoline (CAS 1708013-37-9)
- 5-(Ethoxycarbonyl)-4-(trifluoromethyl)-1H-imidazole 55942-41-1 ethyl 5-(trifluoromethyl)-3H-imidazole-4-carboxylate (CAS 55942-41-1)
- 4-Butoxy-1-chloro-2-(trifluoromethyl)benzene (CAS 1881290-31-8)
- Saikosaponin D (CAS 20874-52-6)
- Hydrocortisone EP Impurity A (CAS 50-24-8)
- Mianserin Impurity 86 (CAS CATO-C4X-136986)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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