2-Chloro-6-fluoro-5-methoxy-1,3-benzothiazole CAS 1344684-79-2
| CAS No. | 1344684-79-2 |
| Molecular Formula | C8H5ClFNOS |
| Molecular Weight | 217.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-6-fluoro-5-methoxy-1,3-benzothiazole is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Chloro-6-fluoro-5-methoxy-1,3-benzothiazole (CAS 1344684-79-2), molecular formula C8H5ClFNOS and molecular weight 217.65 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H5ClFNOS, 2-Chloro-6-fluoro-5-methoxy-1,3-benzothiazole contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 217.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 2-Chloro-6-fluoro-5-methoxy-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 | C8H5ClFNOS |
| Molecular Weight | 217.65 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-Amino-4-(4-chloro-3-methyl-1h-pyrazol-1-yl)butanoic acid (CAS 1342392-34-0)
- 4-Chloro-5-(2-(dimethylamino)ethoxy)pyridazin-3(2H)-one (CAS 1346697-96-8)
- 2-(5-(4-Chlorophenyl)-1H-pyrazol-3-yl)acetonitrile (CAS 134161-76-5)
- tert-Butyl N-(3-chloro-1H-pyrazol-4-yl)carbamate (CAS 1374320-71-4)
- 3-(2-Fluorophenyl)-N7,N7-dimethylquinoline-2,7-diamine (CAS 1630743-73-5)
- N,N-Dimethyl-4-(5-nitro-3H-indol-2-yl)aniline (CAS 64109-85-9)
- 2-Chloro-4-cyclopropoxy-N-methylnicotinamide (CAS 1243282-00-9)
- 1-Chloro-4-(2-methoxyethoxy)butane (CAS 1248678-30-9)
- 5-Chloroquinazoline-2,4(1H,3H)-dione (CAS 78754-81-1)
- 2-(Ethylamino)-6-fluoropyrimidin-4(1H)-one (CAS 184648-50-8)
- 3-(Acetyloxy)-2-nitro-1-phenylpropyl acetate (CAS 77834-86-7)
- Methyl 3-Ethoxythiophene-2-carboxylate (CAS 139926-22-0)
- 3-(4-Fluorophenoxy)-N-(4-methylbenzyl)propane-1-sulfonamide (CAS 946214-59-1)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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