1-(3-(4-Chlorophenyl)-1-(phenylsulfonyl)-1H-pyrazol-4-yl)-1H-1,2,4-triazole CAS 303996-72-7
| CAS No. | 303996-72-7 |
| Molecular Formula | C17H12ClN5O2S |
| Molecular Weight | 385.83 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 1-(3-(4-Chlorophenyl)-1-(phenylsulfonyl)-1H-pyrazol-4-yl)-1H-1,2,4-triazole (CAS 303996-72-7), a certified reference material (molecular formula C17H12ClN5O2S, MW 385.83 g/mol) for analytical method development and quality control.
1-(3-(4-Chlorophenyl)-1-(phenylsulfonyl)-1H-pyrazol-4-yl)-1H-1,2,4-triazole (C17H12ClN5O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 1-(3-(4-Chlorophenyl)-1-(phenylsulfonyl)-1H-pyrazol-4-yl)-1H-1,2,4-triazole 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 | C17H12ClN5O2S |
| Molecular Weight | 385.83 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 3-(3-Chlorophenyl)-4-((3-(2-nitrophenyl)allylidene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 478255-36-6)
- (S)-8-(2-chlorophenyl)-9a-phenyl-9,9a-dihydropyrido[1,2-a]indole-6,10-dione (CAS 2368851-72-1)
- (S)-8-(3-chlorophenyl)-9a-phenyl-9,9a-dihydropyrido[1,2-a]indole-6,10-dione (CAS 2368851-49-2)
- (S)-8-(4-chlorophenyl)-9a-phenyl-9,9a-dihydropyrido[1,2-a]indole-6,10-dione (CAS 2368851-28-7)
- 3-(5-(3-Chlorophenyl)furan-2-yl)-N-(2,4-dimethoxyphenyl)propanamide (CAS 853312-57-9)
- 3-(5-(4-Chlorophenyl)furan-2-yl)-N-(2,4-dimethoxyphenyl)propanamide (CAS 853311-55-4)
- N-(2-Chlorophenyl)-2-(6-(4-fluorophenyl)imidazo[2,1-b]thiazol-3-yl)acetamide (CAS 897464-44-7)
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Recommended Standards
- GSK1733953A (CAS 930470-97-6)
- 3-(5-Chloro-2-(methylthio)pyrimidin-4-yl)-2-(6-methyl-4-oxo-3,4-dihydroquinazolin-2-yl)-3-oxopropanenitrile (CAS 328031-77-2)
- Fenoldopam 8-Sulfate (CAS 87549-39-1)
- Uk-371804 (CAS 256477-09-5)
- (R)-2-methoxy-1-(5-methoxy-2-methylphenyl)ethan-1-amine (CAS 1270081-81-6)
- (6-Methyl-3-(methylthio)-5-oxo-1,2,4-triazin-4(5H)-yl)methyl 2-phenoxyacetate (CAS 877648-39-0)
- 2-Acetyl-5-bromothiophene (CAS 5370-25-2)
- cis-3-Aminocyclobutanecarbonitrile (CAS 1638920-28-1)
- 3-(2,3-Dimethylphenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 84772-24-7)
- Fallypride (CAS 166173-78-0)
- (R)-tert-Butyl 3-methylpyrrolidine-1-carboxylate (CAS 1289689-32-2)
- 3,4,5-Trimethoxyphenethylamine, HCl (1.0 mg/mL in Methanol) (CAS 832-92-8)
- 5-Amino-1-(2-fluorophenyl)-1h-pyrazole-4-carboxamide (CAS 630107-81-2)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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