Ethyl 5-Chloro-1,2,3-thiadiazole-4-carboxylate CAS 6702-95-0
| CAS No. | 6702-95-0 |
| Molecular Formula | C5H5ClN2O2S |
| Molecular Weight | 192.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-Chloro-1,2,3-thiadiazole-4-carboxylate (CAS 6702-95-0) is a high-purity analytical reference standard with the molecular formula C5H5ClN2O2S and a molecular weight of 192.62 g/mol.
Ethyl 5-Chloro-1,2,3-thiadiazole-4-carboxylate (C5H5ClN2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 Ethyl 5-Chloro-1,2,3-thiadiazole-4-carboxylate 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 | C5H5ClN2O2S |
| Molecular Weight | 192.62 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 DMSO, DMF, methanol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- (1R,3S)-3-(2-(3-fluorophenyl)-2-oxoethyl)cyclopentane-1-carboxylic acid (CAS 733740-37-9)
- 5-((1-(Thiophen-2-ylsulfonyl)piperidin-3-yl)methyl)-3-(thiophen-3-yl)-1,2,4-oxadiazole (CAS 1795358-23-4)
- (S)-2-Amino-N-((S)-1-phenylethyl)propanamide (CAS 133287-25-9)
- Methyl (S)-1-Boc-piperazine-2-carboxylate (CAS 796096-64-5)
- 3-(3-Pyridinylmethyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 51216-58-1)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
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