5-Chlorothieno[2,3-d][1,2,3]thiadiazole-6-carboxylic acid CAS 192878-32-3
| CAS No. | 192878-32-3 |
| Molecular Formula | C5HClN2O2S2 |
| Molecular Weight | 220.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Chlorothieno[2,3-d][1,2,3]thiadiazole-6-carboxylic acid (CAS 192878-32-3), molecular formula C5HClN2O2S2 and molecular weight 220.66 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chlorothieno[2,3-d][1,2,3]thiadiazole-6-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.66 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).
CATO manufactures 5-Chlorothieno[2,3-d][1,2,3]thiadiazole-6-carboxylic acid 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 | C5HClN2O2S2 |
| Molecular Weight | 220.66 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Chlorothieno Standards
- 4-chlorothieno[3,2-c]pyridine-7-carboxamide (CAS 55040-49-8)
- 4-chlorothieno[3,2-c]pyridine-2-carboxylic acid (CAS 1360891-68-4)
- 7-chlorothieno[2,3-c]pyridine-4-carboxylic acid (CAS 1360959-24-5)
- 6-chlorothieno[2,3-b]pyridine-2-carboxylic acid (CAS 1536794-94-1)
- 4-chlorothieno[3,2-c]pyridine-7-carboxylic acid (CAS 55040-48-7)
- 7-chlorothieno[3,2-b]pyridine-2-carboxylic acid (CAS 596793-57-6)
- 7-chlorothieno[3,2-b]pyridine-6-carboxylic acid (CAS 90690-94-1)
- 3-Chlorothieno[2,3-b]thiophene-2-carboxylic acid (CAS 39244-08-1)
Recommended Standards
- 6-(4-Chlorophenyl)pyrimidine-2,4-diamine (CAS 175137-09-4)
- 4-chloro-N-methyl-6-phenyl-1,3,5-triazin-2(1H)-imine (CAS 1973-03-1)
- 5-(4-Chlorophenyl)pyrimidine-2,4-diamine (CAS 17039-14-4)
- (2-Chloro-3-mercaptophenyl)dimethylphosphine oxide (CAS 2765310-47-0)
- 7-Bromo-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-5-carboxylic acid (CAS 1301214-76-5)
- 4-(Chloromethyl)-2-(difluoromethyl)-5-methoxynicotinonitrile (CAS 1805089-02-4)
- N-(4-chlorophenyl)-4-nitrobenzamide (CAS 2585-30-0)
- Methyl 2-amino-4-chloro-3-methoxybenzoate (CAS 1249704-18-4)
- 3-amino-1-(trifluoromethyl)cyclohexanol (CAS 1251923-56-4)
- 5-(6-Methyl-4,8-dioxo-1,3,6,2-dioxazaborocan-2-yl)furan-2-carbaldehyde (CAS 1257648-74-0)
- Ethyl 7-(3,4-difluorophenyl)-7-oxoheptanoate (CAS 898752-28-8)
- tert-Butyl-(S)-2-(azidomethyl)-1-pyrrolidine carboxylate (CAS 168049-26-1)
- 2-(4-Nitrophenyl)-1,5,6-triphenylpyrimidin-4(1H)-one (CAS 88317-21-9)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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