32990-47-9 4-methyl-2-thiophenecarbonyl chloride 4-methylthiophene-2-carbonyl chloride A821550 CAS 32990-47-9
| CAS No. | 32990-47-9 |
| Molecular Formula | C6H9ClOS |
| Molecular Weight | 164.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 32990-47-9 4-methyl-2-thiophenecarbonyl chloride 4-methylthiophene-2-carbonyl chloride A821550 is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 32990-47-9 4-methyl-2-thiophenecarbonyl chloride 4-methylthiophene-2-carbonyl chloride A821550 (CAS 32990-47-9), a certified reference material (molecular formula C6H9ClOS, MW 164.65 g/mol) for analytical method development and quality control.
Structurally, 32990-47-9 4-methyl-2-thiophenecarbonyl chloride 4-methylthiophene-2-carbonyl chloride A821550 (C6H9ClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 164.65 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 32990-47-9 4-methyl-2-thiophenecarbonyl chloride 4-methylthiophene-2-carbonyl chloride A821550 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 | C6H9ClOS |
| Molecular Weight | 164.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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