(E)-4-(((4-Methoxyphenyl)thio)methylene)-3-methylisoxazol-5(4H)-one CAS 61861-75-4
| CAS No. | 61861-75-4 |
| Molecular Formula | C12H11NO3S |
| Molecular Weight | 249.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-(((4-Methoxyphenyl)thio)methylene)-3-methylisoxazol-5(4H)-one (CAS 61861-75-4), molecular formula C12H11NO3S and molecular weight 249.29 g/mol, is a CATO reference standard with documented purity and traceability.
(E)-4-(((4-Methoxyphenyl)thio)methylene)-3-methylisoxazol-5(4H)-one (C12H11NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 (E)-4-(((4-Methoxyphenyl)thio)methylene)-3-methylisoxazol-5(4H)-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 | C12H11NO3S |
| Molecular Weight | 249.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| 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 |
Related E Standards
- 2-(3-Methoxyphenyl)-5-methyl-1,3-thiazole-4-carboxylic acid (CAS 1017384-84-7)
- 2-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]ethanethioamide (CAS 1113111-28-6)
- 2-(4-Methoxyphenyl)-5-methylthiazole-4-carboxylic acid (CAS 115299-09-7)
- 4-(2-Methoxyphenyl)-2-methylthiazole-5-carboxylic acid (CAS 1188184-23-7)
- Methyl 2-(4-methoxyphenyl)thiazole-4-carboxylate (CAS 1315510-08-7)
- 6-((3-Methoxyphenyl)amino)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 1365938-93-7)
- 6-((2-Methoxyphenyl)amino)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 1365941-55-4)
- N-(2-Methoxyphenyl)-4-methyl-1,2,3-thiadiazole-5-carboxamide (CAS 183300-00-7)
Recommended Standards
- (6,7-Dihydro-5H-cyclopenta[4,5]thieno[2,3-d]-pyrimidin-4-ylamino)-acetic acid (CAS 401820-32-4)
- (E)-N'-(4-(2,4-dimethylthiazol-5-yl)pyrimidin-2-yl)-N-hydroxyformimidamide (CAS 566149-74-4)
- (5Z)-5-[(4-Methoxyphenyl)methylidene]-3-methyl-1,3-thiazolidine-2,4-dione (CAS 642474-13-3)
- (Z)-4-(((4-Methoxyphenyl)thio)methylene)-3-methylisoxazol-5(4H)-one (CAS 61861-74-3)
- 1-[(3-methylthiophen-2-yl)methyl]pyrrolidin-3-amine (CAS 1250656-37-1)
- 1-[(benzyloxy)carbonyl]azepane-4-carboxylic acid (CAS 1195256-01-9)
- 4-((4-Methylthiazol-5-yl)sulfonyl)morpholine (CAS 1427460-75-0)
- 4-Bromo-2-fluoro-3-(trifluoromethyl)aniline (CAS 159329-03-0)
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- Methyl Mercury and Ethyl Mercury Chloride Mix (CAS CATO-LCEM500808-TO)
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- Peptide Impurity 64 (CAS CATO-CPTD788964)
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