4-(2-Hydroxyethyl)-5-methyl-1-((2-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one CAS 866039-77-2
| CAS No. | 866039-77-2 |
| Molecular Formula | C18H17N3O6S |
| Molecular Weight | 403.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-(2-Hydroxyethyl)-5-methyl-1-((2-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 403.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-(2-Hydroxyethyl)-5-methyl-1-((2-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 866039-77-2), molecular formula C18H17N3O6S and molecular weight 403.41 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(2-Hydroxyethyl)-5-methyl-1-((2-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H17N3O6S |
| Molecular Weight | 403.41 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.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Hydroxyethyl Standards
- 4-(2-Hydroxyethyl)-5-methyl-1-((4-nitrophenyl)sulfonyl)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 866039-55-6)
- 10-(2-Hydroxyethyl)-5,10-dihydrobenzo[g]pteridine-2,4(1H,3H)-dione (CAS 15800-90-5)
- N-(4-(2-Hydroxyethyl)phenyl)-2-(4-nitrobenzamido)benzamide (CAS 1253452-78-6)
- 3-(2-(2-Hydroxyethyl)-4,5-dimethoxyphenyl)-6,7-dimethoxy-2-methylisoquinolin-1(2H)-one (CAS 136540-25-5)
- 4-(2-Hydroxyethyl)-1-((4-iodophenyl)sulfonyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 860611-73-0)
- N-(1-(2-Hydroxyethyl)-3-(thiophen-2-yl)-1H-pyrazol-5-yl)-1-(methylsulfonyl)piperidine-4-carboxamide (CAS 1219913-34-4)
- N-[9-(2-Hydroxyethyl)-9H-carbazol-3-yl]-2-(trifluoromethyl)benzamide (CAS 1195786-61-8)
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Recommended Standards
- Ciprofloxacin Impurity 17 (CAS 93594-29-7)
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- 2-(4-Aminopiperidin-1-yl)-N-(2,4-dimethoxyphenyl)acetamide (CAS 952936-85-5)
- 1-(2-(3-(Trifluoromethyl)phenoxy)ethyl)piperidine (CAS 774487-98-8)
- 3-((5-(5-Chloro-2-hydroxybenzylidene)-3-methyl-4-oxothiazolidin-2-ylidene)amino)benzoic acid (CAS 491582-40-2)
- Methyl 2-(1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamido)butanoate (CAS 1026104-65-3)
- 1-(5-Bromothiophen-2-yl)-N-(pyridin-2-ylmethyl)methanamine (CAS 1020996-25-1)
- 8-((5'-Amino-2'-Methyl-3'-Thiapentyl)Amino)-6-Methoxy-4-Methyl-5-((3-Trifluoromethyl)Phenoxy)Quinoline (CAS 98586-87-9)
- Selexipag Impurity 69 (CAS CATO-C4X-196169)
- 2-(2,4-Dibromophenoxy)acetonitrile (CAS 60758-90-9)
- 1-(4-Isothiocyanatophenyl)piperazine (CAS 1824272-50-5)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
Why CATO?
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