N'-[(1E)-(4-Chlorophenyl)methylidene]-5-methyl-4-[2-(2-methyl-1,3-thiazol-4-yl)-1,3-thiazol-4-yl]-1,2-oxazole-3-carbohydrazide CAS 860787-59-3
| CAS No. | 860787-59-3 |
| Molecular Formula | C19H14ClN5O2S2 |
| Molecular Weight | 443.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N'-[(1E)-(4-Chlorophenyl)methylidene]-5-methyl-4-[2-(2-methyl-1,3-thiazol-4-yl)-1,3-thiazol-4-yl]-1,2-oxazole-3-carbohydrazide (C19H14ClN5O2S2) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
N'-[(1E)-(4-Chlorophenyl)methylidene]-5-methyl-4-[2-(2-methyl-1,3-thiazol-4-yl)-1,3-thiazol-4-yl]-1,2-oxazole-3-carbohydrazide (CAS 860787-59-3), molecular formula C19H14ClN5O2S2 and molecular weight 443.93 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H14ClN5O2S2 |
| Molecular Weight | 443.93 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Recommended Standards
- Ethyl 1-(4-chlorophenyl)-3-methyl-4-{[2-(morpholin-4-yl)ethyl]amino}-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 866132-85-6)
- 2-((Tribromomethyl)sulfonyl)quinoline (CAS 163342-70-9)
- 4-Amino-N-{4-[2-(4-chlorophenyl)-1,3-thiazol-5-yl]pyrimidin-2-yl}benzene-1-sulfonamide (CAS 1211337-63-1)
- 2-Amino-4-(4-chlorophenyl)-7,7-dimethyl-3-(phenylsulfonyl)-4,6,7,8-tetrahydro-5H-chromen-5-one (CAS 866137-52-2)
- 4,5-Dimethyl-2,3-dihydro-1,3-oxazol-2-one (CAS 59167-68-9)
- 2-Phenyl-3,4-dihydro-2H-pyrrol-5-amine (CAS 82256-22-2)
- 2,5-Dimethyl-3-nitrobenzaldehyde (CAS 69022-52-2)
- [1-(4-chlorophenyl)cyclohexyl]methanamine (CAS 342425-45-0)
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- 2-Ethyl-3,4-dihydropyrrolo[1,2-a]pyrazin-1(2H)-one (CAS 709037-15-0)
- 3-(2-Methylphenyl)benzaldehyde (CAS 371764-26-0)
- Methyl 2-amino-3-(dimethylamino)-2-methylpropanoate (CAS 1248733-60-9)
- 2-Cyclopropoxy-4-(methylthio)aniline (CAS 1243383-00-7)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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