(Z)-3-Methyl-4-((phenylthio)methylene)isoxazol-5(4H)-one CAS 61861-48-1
| CAS No. | 61861-48-1 |
| Molecular Formula | C11H9NO2S |
| Molecular Weight | 219.26 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.
(Z)-3-Methyl-4-((phenylthio)methylene)isoxazol-5(4H)-one (CAS 61861-48-1), molecular formula C11H9NO2S and molecular weight 219.26 g/mol, is a CATO reference standard with documented purity and traceability.
(Z)-3-Methyl-4-((phenylthio)methylene)isoxazol-5(4H)-one (C11H9NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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), (Z)-3-Methyl-4-((phenylthio)methylene)isoxazol-5(4H)-one 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 | C11H9NO2S |
| Molecular Weight | 219.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- (E)-3-Methyl-4-((phenylthio)methylene)isoxazol-5(4H)-one (CAS 61861-49-2)
- 1-(2-(Pyridin-3-ylamino)thiazol-5-yl)ethan-1-one (CAS 952183-61-8)
- (4aS,7S)-1,1-dioxo-3,4,4a,5,6,7-hexahydro-2H-pyrrolo[1,2-b]thiazine-7-carboxylic acid (CAS 608128-55-8)
- 1-(2-Fluorobenzyl)-3,5-dimethyl-1h-pyrazol-4-amine (CAS 895929-68-7)
- Cycloheptyl(4-(trifluoromethyl)phenyl)methanone (CAS 1443312-55-7)
- Ammonium tetrachloroaurate(III) (CAS 31113-23-2)
- N-[(R)-1-(2-Chloro-acetyl)-piperidin-3-yl]-N-ethyl-acetamide (CAS 1354001-49-2)
- 2-Chloro-7-nitro-1H-indole (CAS 25369-35-1)
- (5E)-5-[(2,4-Difluorophenyl)methylidene]-1,3-thiazolidine-2,4-dione (CAS 153709-95-6)
- 3-Bromo-3-methyl-2-((2-nitrophenyl)thio)-3H-indole (CAS 27933-36-4)
- 2-Fluoro-3'-(trifluoromethoxy)biphenyl-3-carboxylic acid (CAS 1261558-22-8)
- 2-Phenylacetamide (CAS 103-81-1)
- BII1EYP5EW 7152-42-3 N-Phenylphenothiazine Phenothiazine, 10-phenyl- 10H-Phenothiazine, 10-phenyl- (9CI) 4-27-00-01220 (Beilstein Handbook Reference) BRN 0017325 NSC 23181 10-Phenylphenothiazine UNII-BII1EYP5EW (CAS 7152-42-3)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com