5-((4-Chlorophenyl)thio)-1,2,3-thiadiazole-4-carboxylic Acid CAS 338760-78-4
| CAS No. | 338760-78-4 |
| Molecular Formula | C9H5ClN2O2S2 |
| Molecular Weight | 272.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-((4-Chlorophenyl)thio)-1,2,3-thiadiazole-4-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.
CATO supplies 5-((4-Chlorophenyl)thio)-1,2,3-thiadiazole-4-carboxylic Acid (CAS 338760-78-4), a certified reference material (molecular formula C9H5ClN2O2S2, MW 272.73 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 5-((4-Chlorophenyl)thio)-1,2,3-thiadiazole-4-carboxylic Acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 272.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C9H5ClN2O2S2 |
| Molecular Weight | 272.73 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Chlorophenyl Standards
- (2E)-1-(3-Chlorophenyl)-3-(2-methoxyphenyl)prop-2-en-1-one (CAS 1013591-50-8)
- (2E)-3-(4-Chlorophenyl)-1-(2-methoxyphenyl)prop-2-en-1-one (CAS 1029599-29-8)
- (2E)-1-(2-Chlorophenyl)-3-(2-methoxyphenyl)prop-2-en-1-one (CAS 1032917-58-0)
- (2-(4-Chlorophenyl)-6-methylimidazo[1,2-a]pyridin-3-yl)methanol (CAS 103844-30-0)
- 3-(4-Chlorophenyl)-1-[(E)-2-phenylethenyl]urea (CAS 1164507-93-0)
- (2E)-3-(2-Chlorophenyl)-1-(3-methoxyphenyl)prop-2-en-1-one (CAS 1196678-99-5)
- 2-(2-Chlorophenyl)-2-[(E)-(phenylmethylidene)amino]acetamide (CAS 1198213-96-5)
- 2-(4-Chlorophenyl)-2,3-dihydro-1H-indene-2-carboxylic acid (CAS 1266693-59-7)
Recommended Standards
- 4-Chloro-3-(5,7-dimethylbenzo[d]oxazol-2-yl)aniline (CAS 292644-39-4)
- 5-(4-Chlorophenyl)-1-isopropyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 338423-60-2)
- 4-Chloro-3-(5,6-dimethylbenzo[d]oxazol-2-yl)aniline (CAS 292058-52-7)
- 5-(4-Chlorophenyl)-7-ethyl-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 956026-05-4)
- Diethyl(methyl)[4-({[(propan-2-yl)imino]methylidene}amino)pentyl]azanium iodide (CAS 1231953-81-3)
- 2-(Allyloxy)-N-methoxy-N-methylacetamide (CAS 1120309-29-6)
- Benzoyl-l-isoleucine (CAS 36578-01-5)
- 2-(1H-Imidazol-5-yl)acetaldehyde (CAS 645-14-7)
- Natamycin Impurity 11 (CAS CATO-C4X-204011)
- (4-Bromo-1-ethyl-1H-pyrazol-3-yl)(piperazin-1-yl)methanone hydrochloride (CAS 1189660-71-6)
- Ethyl 3-(2-methoxy-2-oxoethyl)-5-oxo-3-pyrrolidinecarboxylate (CAS 1823833-75-5)
- Diquafosol Impurity 7 (CAS 14264-46-1)
- 3-(4-Chlorophenoxy)-2-phenylquinoline (CAS 477886-55-8)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com