4-methyl-1,3-benzothiazole-2-carboxylic acid CAS 3507-47-9
| CAS No. | 3507-47-9 |
| Molecular Formula | C9H15NO2S |
| Molecular Weight | 201.29 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.
4-methyl-1,3-benzothiazole-2-carboxylic acid (CAS 3507-47-9), molecular formula C9H15NO2S and molecular weight 201.29 g/mol, is a CATO reference standard with documented purity and traceability.
4-methyl-1,3-benzothiazole-2-carboxylic acid (C9H15NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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).
CATO manufactures 4-methyl-1,3-benzothiazole-2-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 | C9H15NO2S |
| Molecular Weight | 201.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related methyl Standards
- 7-methyl-1,3-benzothiazole-2-carboxylic acid (CAS 1188226-86-9)
- 5-methyl-1,3-benzothiazole-2-carboxylic acid (CAS 3507-52-6)
- 6-methyl-1,3-benzothiazole-2-carboxylic acid (CAS 3507-18-4)
- 2-Methyl-1,3-benzothiazole-6-carboxylic acid 6941-28-2 8257AE C9H7NO2S (CAS 6941-28-2)
- 2757-92-8 Benzothiazole, 2-(ethylthio)- 2-(Ethylthio)benzothiazole EINECS 220-418-9 Ethyl mercaptobenzthiazole Ethylcaptax 2-Ethylmercaptobenzothiazole NSC 45348 (CAS 2757-92-8)
- 1,3-Benzothiazole-6-carbonyl chloride (CAS 55439-73-1)
- 1,2-benzothiazole-3-carbonyl chloride (CAS 145759-64-4)
- 1,3-Benzothiazole-2-carbonyl chloride 67748-61-2 benzo[d]thiazole-2-carbonyl chloride (CAS 67748-61-2)
Recommended Standards
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- 4-aminothieno[3,2-c]pyridine-7-carboxamide (CAS 55040-50-1)
- 5-(2-Thienyl)indoline (CAS 893738-64-2)
- 4-Tert-butyl 3-methyl 1,1-dioxo-1lambda6-thiomorpholine-3,4-dicarboxylate (CAS 929047-22-3)
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- Famitinib Malate (CAS 1256377-67-9)
- 2-Phenyl-1H-indole-5-carboxylic acid (CAS 110073-82-0)
- 6-Bromo-4-(bromomethyl)-5-(difluoromethyl)nicotinaldehyde (CAS 1804848-20-1)
- 3-Chloro-n-(2-fluorophenyl)propanamide (CAS 349097-66-1)
- Ethyl 8-benzyl-3-oxo-1-oxa-8-azaspiro[4.5]Decane-4-carboxylate (CAS 1454273-40-5)
- 4-Chloro-6-((4-methoxyphenyl)thio)-2-(methylthio)pyrimidine (CAS 478258-40-1)
- rac-1-(2,4-Dichlorophenyl)-2-(1-imidazolyl)ethanol-d6 (CAS 1794827-25-0)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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