2-Chloro-4,7-dimethoxy-1,3-benzothiazole CAS 890091-99-3
| CAS No. | 890091-99-3 |
| Molecular Formula | C9H8ClNO2S |
| Molecular Weight | 229.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Chloro-4,7-dimethoxy-1,3-benzothiazole.
2-Chloro-4,7-dimethoxy-1,3-benzothiazole (CAS 890091-99-3), molecular formula C9H8ClNO2S and molecular weight 229.68 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Chloro-4,7-dimethoxy-1,3-benzothiazole (C9H8ClNO2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 2-Chloro-4,7-dimethoxy-1,3-benzothiazole 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 | C9H8ClNO2S |
| Molecular Weight | 229.68 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- 3-Chloro-5,7-dimethoxybenzo[d]isothiazole (CAS 1184915-20-5)
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Recommended Standards
- 1-Methyl-1h-indole-7-sulfonyl chloride (CAS 941716-95-6)
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- 2-chloro-N-(3-fluorobenzyl)-N-methylpropanamide (CAS 852399-84-9)
- 2-(2,3-Difluorophenyl)-2-methylpropanoic acid (CAS 1035261-36-9)
- Boc-aminooxy-PEG4-propargyl (CAS 1895922-77-6)
- 4-Nitrophenyl α-L-Fucopyranoside (CAS 10231-84-2)
- Imidazo[1,2-a]pyrazine-6-methanamine (CAS 1313726-31-6)
- Zorubicin hydrochloride (CAS 36508-71-1)
- 3-(3-(2,6-Difluorophenyl)-1,2,4-oxadiazol-5-yl)pyridin-2-amine (CAS 1708168-88-0)
- 2-(2-(Benzo[d]thiazol-2-ylamino)-5-oxo-4,5-dihydro-1H-imidazol-4-yl)acetic acid (CAS 436811-21-1)
- tert-Butyl (6-(bromomethyl)pyridin-3-yl)carbamate (CAS 1088711-73-2)
- N-((S)-1-Hydrazinocarbonyl-2-methyl-propyl)-4-methoxy-benzamide (CAS 1175960-08-3)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
Why CATO?
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