2-Chlorobenzothiazole-6-carboxylic Acid CAS 3855-95-6
| CAS No. | 3855-95-6 |
| Molecular Formula | C8H4ClNO2S |
| Molecular Weight | 213.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Chlorobenzothiazole-6-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.
2-Chlorobenzothiazole-6-carboxylic Acid (CAS 3855-95-6), molecular formula C8H4ClNO2S and molecular weight 213.64 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H4ClNO2S, 2-Chlorobenzothiazole-6-carboxylic Acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.64 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).
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 | C8H4ClNO2S |
| Molecular Weight | 213.64 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorobenzothiazole Standards
- Methyl 2-Chlorobenzothiazole-6-carboxylate (CAS 90792-69-1)
- 2-Chlorobenzothiazole-6-carbonitrile (CAS 80945-83-1)
- Ethyl 2-Chlorobenzothiazole-5-carboxylate (CAS 1680191-38-1)
- Ethyl 2-Chlorobenzothiazole-6-carboxylate (CAS 78485-37-7)
- 5-Chlorobenzothiazole-2-sulphonyl fluoride (CAS 934236-36-9)
- 4-Chlorobenzothiazole (CAS 3048-45-1)
- 5-Chlorobenzothiazole (CAS 2786-51-8)
- 2-Chlorobenzothiazole (CAS 615-20-3)
Recommended Standards
- 2-(2-Furyl)-1,3-thiazole-4-carbonyl chloride (CAS 914637-72-2)
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- 1,3-Dioxoisoindolin-2-yl hypochlorothioite (CAS 54974-07-1)
- 3-Chlorothieno[2,3-b]pyridine-2-carboxylic acid (CAS 937640-24-9)
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- 2-(Methylthio)-4H-thiochromen-4-one (CAS 71504-04-6)
- 1142208-31-8 4-Amino-6-(3-bromophenyl)-1,6-dihydro-1,3,5-triazine-2-thiol (CAS 1142208-31-8)
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