4-Chloro-N'-(1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carbonyl)benzenesulfonohydrazide CAS 477709-82-3
| CAS No. | 477709-82-3 |
| Molecular Formula | C20H16ClN5O3S |
| Molecular Weight | 441.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H16ClN5O3S, 4-Chloro-N'-(1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carbonyl)benzenesulfonohydrazide contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 441.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Chloro-N'-(1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carbonyl)benzenesulfonohydrazide (CAS 477709-82-3) is a high-purity analytical reference standard with the molecular formula C20H16ClN5O3S and a molecular weight of 441.89 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-N'-(1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carbonyl)benzenesulfonohydrazide 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 | C20H16ClN5O3S |
| Molecular Weight | 441.89 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| 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 Chloro Standards
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- 2-(2-(1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-indol-3-yl)acetyl)-N-methylhydrazine-1-carbothioamide (CAS 306977-97-9)
- N-(4-Chloro-3-(trifluoromethyl)phenyl)-2-((4-ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 618414-35-0)
- N-(4-Chloro-3-(trifluoromethyl)phenyl)-2-((4-ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 573695-56-4)
- N-(4-Chloro-3-(trifluoromethyl)phenyl)-2-((4-ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 573950-78-4)
- 1-(5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}thiophen-2-yl)-2-[(4-methylphenyl)sulfanyl]ethan-1-one (CAS 338411-67-9)
- (E)-2-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrrol-2-yl}-N-(4-methylphenyl)ethene-1-sulfonamide (CAS 478080-66-9)
Recommended Standards
- Tantalum(V) oxide (CAS 1314-61-0)
- 3-(((3S,5S)-1,5-bis(tert-butoxycarbonyl)pyrrolidin-3-yl)oxy)-5-chlorobenzoic acid (CAS 2442510-34-9)
- Lenvatinib Impurity 139 (CAS CATO-C4X-1140139)
- 4-(((3S,5S)-1,5-bis(tert-butoxycarbonyl)pyrrolidin-3-yl)oxy)-2-chlorobenzoic acid (CAS 2442510-23-6)
- Seviteronel R enantiomer (CAS 1375603-38-5)
- n-(Benzo[d]thiazol-2-yl)benzenesulfonamide (CAS 13068-60-5)
- (Z)-Ethyl 2-(2-(5-bromo-2-nitrophenyl)hydrazono)propanoate (CAS 2007930-99-4)
- 7-Chloro-4-((4-methoxyphenyl)sulfonyl)-3,4-dihydro-2H-benzo[b][1,4]thiazine (CAS 338777-93-8)
- Methyl 3-(4-bromo-2-fluorophenyl)propanoate (CAS 1257107-61-1)
- Apocynin (CAS 498-02-2)
- N-(3-(Dimethylamino)propyl)-2-(quinolin-8-yloxy)acetamide (CAS 88350-33-8)
- N-Butyl-2-chloro-N-(4-methyloxazol-2-yl)acetamide (CAS 57068-65-2)
- O-(3-Chloroprop-2-en-1-yl)hydroxylamine hydrochloride (CAS 82244-86-8)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
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