4-(Oxazol-4-yl)benzene-1-sulfonyl chloride CAS 954368-94-6
| CAS No. | 954368-94-6 |
| Molecular Formula | C9H6ClNO3S |
| Molecular Weight | 243.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 243.67 g/mol gives 4-(Oxazol-4-yl)benzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(Oxazol-4-yl)benzene-1-sulfonyl chloride (CAS 954368-94-6) is a high-purity analytical reference standard with the molecular formula C9H6ClNO3S and a molecular weight of 243.67 g/mol.
Based on its molecular formula C9H6ClNO3S, 4-(Oxazol-4-yl)benzene-1-sulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(Oxazol-4-yl)benzene-1-sulfonyl chloride 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 | C9H6ClNO3S |
| Molecular Weight | 243.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Oxazol Standards
- 2-(Oxazol-5-yl)benzenesulfonyl chloride (CAS 1053658-65-3)
- 3-(1,2-oxazol-5-yl)benzene-1-sulfonyl chloride (CAS 13567-19-6)
- 2-(1,2-oxazol-4-yl)benzene-1-sulfonyl chloride (CAS 87488-71-9)
- 2-(1,2-oxazol-5-yl)benzene-1-sulfonyl chloride (CAS 87488-64-0)
- 3-(Oxazol-5-yl)benzenesulfonyl chloride (CAS 499770-75-1)
- 4-(1,2-oxazol-5-yl)benzene-1-sulfonyl chloride (CAS 5765-41-3)
- 4-(Oxazol-2-yl)benzenesulfonyl chloride (CAS 956595-45-2)
- 4-(Oxazol-5-yl)benzenesulfonyl chloride (CAS 337508-66-4)
Recommended Standards
- 4-Chloroquinoline-3-sulfonic acid (CAS 205985-49-5)
- 3-phenyl-1,2-oxazole-5-sulfonyl chloride (CAS 37543-50-3)
- 4-Chloroquinoline-8-sulfonic acid (CAS 71331-01-6)
- 3-Methyl-5-(4-methyl-1,2,3-thiadiazol-5-yl)isoxazole-4-carbonyl chloride (CAS 423768-48-3)
- (3-Bromo-4-cyclopropoxypyridin-2-yl)methanamine (CAS 1243464-65-4)
- 2,4-Dichloro-N-(5-(thiophen-2-ylmethyl)-1,3,4-oxadiazol-2-yl)benzamide (CAS 1040666-45-2)
- 3-(2-Chloropyridin-4-yl)oxetan-3-ol (CAS 1263400-52-7)
- 2-Amino-N-(5-isobutyl-1,3,4-thiadiazol-2-yl)acetamide (CAS 1176501-45-3)
- 3-propyl-1,2,4-thiadiazol-5-amine (CAS 32039-20-6)
- 3-(2,3-Dimethoxyphenyl)-1-(4-methoxyphenyl)prop-2-en-1-one (CAS 18778-38-6)
- n-(Pyridin-2-ylmethyl)tetrahydrothiophen-3-amine (CAS 1020960-38-6)
- 1-(Cyclohexyloxy)-4-ethynylbenzene (CAS 587854-10-2)
- 2-([1,1'-Biphenyl]-4-yl)-3-methylquinoline-4-carboxylic acid (CAS 130507-59-4)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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