4-Methyl-1,3-thiazole-2-carbonyl chloride CAS 79312-42-8
| CAS No. | 79312-42-8 |
| Molecular Formula | C5H4ClNOS |
| Molecular Weight | 161.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 161.61 g/mol gives 4-Methyl-1,3-thiazole-2-carbonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Methyl-1,3-thiazole-2-carbonyl chloride (CAS 79312-42-8) is a high-purity analytical reference standard with the molecular formula C5H4ClNOS and a molecular weight of 161.61 g/mol.
Based on its molecular formula C5H4ClNOS, 4-Methyl-1,3-thiazole-2-carbonyl chloride contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 161.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-Methyl-1,3-thiazole-2-carbonyl 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 | C5H4ClNOS |
| Molecular Weight | 161.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 5-Methyl-1,3-thiazole-4-carbonyl chloride (CAS 120237-77-6)
- 2-Methyl-1,3-thiazole-5-carbonyl chloride (CAS 60971-72-4)
- 4-Methyl-1,3-thiazole-5-carbonyl chloride (CAS 54237-09-1)
- 5-Methyl-1,3-thiazole-2-carbonyl chloride (CAS 61291-22-3)
- 1,3-Thiazole-2-sulfonamide (CAS 113411-24-8)
- Thiazole-4-sulfonamide (CAS 89501-97-3)
- Thiazole-5-sulfonamide (CAS 848362-05-0)
- Thiazole-2-sulfonic acid (CAS 172412-76-9)
Recommended Standards
- 4-Chloro-2-methylthiazole-5-carbaldehyde (CAS 866329-08-0)
- 2-Methylthiazole-4-carbonyl Chloride (CAS 55842-53-0)
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- 2-Chloro-4-methylthiazole-5-carbaldehyde (CAS 289469-54-1)
- 3-(3-Methyl-4-nitrophenoxy)azetidine (CAS 1220029-08-2)
- 3,5-Difluoro-4-isobutoxybenzenethiol (CAS 1379365-07-7)
- 3-BROMO-2-IODOCYCLOPENT-2-EN-1-ONE (CAS 892145-42-5)
- methyl 3-[(2,5-difluorophenyl)sulfanyl]prop-2-enoate (CAS 1563957-23-2)
- 5-Chloro-3-methyl-1,2,4-thiadiazole (CAS 21734-85-0)
- 3-(2-Aminophenoxy)propanoic acid (CAS 6303-99-7)
- 6-Bromo-1-isopropyl-3-methyl-1H-indole-4-carboxylic acid (CAS 1346575-60-7)
- tert-Butyl cyclobutyl(5-(1-formylpyrrolidin-2-yl)pyridin-2-yl)carbamate (CAS 1352490-64-2)
- 4-((5-Chloro-1,2,3-thiadiazol-4-yl)methyl)thiomorpholine 1,1-dioxide (CAS 1153766-51-8)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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