4,5-dichloro-2-thiazolecarboxaldehyde CAS 1173897-83-0
| CAS No. | 1173897-83-0 |
| Molecular Formula | C4H5Cl2NOS |
| Molecular Weight | 186.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4,5-dichloro-2-thiazolecarboxaldehyde (CAS 1173897-83-0), molecular formula C4H5Cl2NOS and molecular weight 186.06 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4,5-dichloro-2-thiazolecarboxaldehyde (C4H5Cl2NOS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C4H5Cl2NOS |
| Molecular Weight | 186.06 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related dichloro Standards
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Recommended Standards
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- 3-Phosphoglyceric Acid (CAS 820-11-1)
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- Convicine (CAS 19286-37-4)
- rel-(4aR,6R,8aS)-6-(tert-Butyl)octahydronaphthalen-2(1H)-one (CAS 24817-28-5)
- (1-Ethyl-1H-benzo[d][1,2,3]triazol-5-yl)methanamine (CAS 1498977-09-5)
- N-(2-Cyano-6-formylpyridin-4-yl)acetamide (CAS 1393582-64-3)
- N-aminopyrimidine-2-carboximidamide dihydrochloride (CAS 1803585-11-6)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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