4,5-Dichlorothiazole-2-carboxylic acid CAS 62019-55-0
| CAS No. | 62019-55-0 |
| Molecular Formula | C4HCl2NO2S |
| Molecular Weight | 198.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C4HCl2NO2S, 4,5-Dichlorothiazole-2-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
4,5-Dichlorothiazole-2-carboxylic acid (CAS 62019-55-0), molecular formula C4HCl2NO2S and molecular weight 198.03 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.
As a certified reference material (CRM), 4,5-Dichlorothiazole-2-carboxylic acid 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 | C4HCl2NO2S |
| Molecular Weight | 198.03 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichlorothiazole Standards
- 2,5-Dichlorothiazole-4-carboxylic Acid (CAS 127426-30-6)
- 2,4-Dichlorothiazole-5-carboxylic acid (CAS 62019-56-1)
- 2,5-dichlorothiazole-4-carboxamide (CAS 127426-27-1)
- Methyl 2,5-dichlorothiazole-4-carboxylate (CAS 135925-32-5)
- Methyl 2,4-dichlorothiazole-5-carboxylate (CAS 861708-66-9)
- 2,4-Dichlorothiazole-5-carboxaldehyde, 97% (CAS 92972-48-0)
- 2,5-Dichlorothiazole-4-carbaldehyde (CAS 929910-36-1)
- 2,5-Dichlorothiazole-4-carbonitrile (CAS 127426-26-0)
Recommended Standards
- 3-Biphenylboronic acid, 97% (CAS 5122-95-2)
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- 593-04-4 Boron trifluoride butyl ether Boron trifluoride butyl etherate Boron trifluoride dibutyl etherate Dibutyl ether-boron trifluoride Trifluoroboron dibutyl etherate (CAS 593-04-4)
- (E)-({6-[(4-chlorophenyl)sulfanyl]pyridin-3-yl}methylidene)amino 3-methylbutanoate (CAS 338967-26-3)
- 1-Phenyl-2-pentanone (CAS 6683-92-7)
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- 3-Phenyl-N-(2-(pyrimidin-5-yl)ethyl)acrylamide (CAS 2035017-97-9)
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