1142199-70-9 (4E)-3-(Chloromethyl)-4-[(3-methylthiophen-2-yl)methylidene]-1,2-oxazol-5(4H)-one MFCD12027822 CAS 1142199-70-9
| CAS No. | 1142199-70-9 |
| Molecular Formula | C10H8ClNO2S |
| Molecular Weight | 241.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1142199-70-9 (4E)-3-(Chloromethyl)-4-[(3-methylthiophen-2-yl)methylidene]-1,2-oxazol-5(4H)-one MFCD12027822 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1142199-70-9 (4E)-3-(Chloromethyl)-4-[(3-methylthiophen-2-yl)methylidene]-1,2-oxazol-5(4H)-one MFCD12027822 (CAS 1142199-70-9) is a high-purity analytical reference standard with the molecular formula C10H8ClNO2S and a molecular weight of 241.69 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 1142199-70-9 (4E)-3-(Chloromethyl)-4-[(3-methylthiophen-2-yl)methylidene]-1,2-oxazol-5(4H)-one MFCD12027822 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 241.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 1142199-70-9 (4E)-3-(Chloromethyl)-4-[(3-methylthiophen-2-yl)methylidene]-1,2-oxazol-5(4H)-one MFCD12027822 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 | C10H8ClNO2S |
| Molecular Weight | 241.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related E Standards
- (E)-3-(chloromethyl)-4-((5-methylthiophen-2-yl)methylene)isoxazol-5(4H)-one (CAS 1142199-93-6)
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- 5-(Chloromethyl)-3-(4-methoxyphenyl)-1,3-oxazolidin-2-one (CAS 121082-79-9)
- 5-(Chloromethyl)-3-(4,6-dimethylpyrimidin-2-yl)-1,3-oxazolidin-2-one (CAS 1256628-06-4)
- Methyl 2-(2-(chloromethyl)phenyl)-2-(methoxyimino)acetate (CAS 847027-68-3)
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Recommended Standards
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- 1-[(2-chloro-6-fluorophenyl)methyl]piperidin-4-one (CAS 1082545-19-4)
- tert-butyl 4-hydroxy-4-(hydroxymethyl)piperidine-1-carboxylate (CAS 389889-80-9)
- (S)-1-(4-(2-(6-Amino-8-((6-bromobenzo[d][1,3]dioxol-5-yl)thio)-9H-purin-9-yl)ethyl)piperidin-1-yl)-1-oxopropan-2-yl L-alaninate (CAS 1310540-31-8)
- 1H-Isoindole, 2,3-dihydro-4-methyl-, hydrochloride (1:1) (CAS 1956331-04-6)
- 1-iodo-2-methoxy-ethane (CAS 4296-15-5)
- Benzyl 2-propylpiperazine-1-carboxylate hydrochloride (CAS 1179361-53-5)
- Methyl 3-(3,5-dichlorophenyl)-3-oxopropanoate (CAS 677326-68-0)
- tert-Butyl 6-aminooctahydroisoquinoline-2(1H)-carboxylate (CAS 1246033-04-4)
- 7-Amino-2,4-dichloro-9H-fluoren-9-one (CAS 1785-32-6)
- 4-Chloro-6-(difluoromethyl)-3-methylpyridine-2-sulfonamide (CAS 1805381-58-1)
- Peptide-GMF (CAS CATO-CPTD788469)
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