2-Chloro-5-ethoxybenzo[d]thiazole CAS 855275-58-0
| CAS No. | 855275-58-0 |
| Molecular Formula | C9H8ClNOS |
| Molecular Weight | 213.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Chloro-5-ethoxybenzo[d]thiazole (CAS 855275-58-0), a certified reference material (molecular formula C9H8ClNOS, MW 213.68 g/mol) for analytical method development and quality control.
2-Chloro-5-ethoxybenzo[d]thiazole (C9H8ClNOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; 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).
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.
As a certified reference material (CRM), 2-Chloro-5-ethoxybenzo[d]thiazole 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.
Physical & Chemical Properties
| Molecular Formula | C9H8ClNOS |
| Molecular Weight | 213.68 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 |
| 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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- n-(2-Chloro-6-fluorobenzyl)-1-cyclopropylmethanamine (CAS 1019504-28-9)
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Recommended Standards
- 2-Chloro-4-methyl-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 55043-50-0)
- 2-Chloro-6-ethoxy-benzothiazole (CAS 79071-17-3)
- 2-Chloro-4-ethoxy-1,3-benzothiazole (CAS 890091-95-9)
- 3-(4-Chlorophenyl)-1,3-thiazolidin-4-one (CAS 338417-75-7)
- Rel-(2R,3R)-1-ethyl-6-oxo-2-phenylpiperidine-3-carboxylic acid (CAS 1212084-51-9)
- Methyl 5-(methylthio)nicotinate (CAS 74470-43-2)
- 3-Fluoro-4'-(methylsulfonyl)-[1,1'-biphenyl]-4-ol (CAS 1032825-01-6)
- Diethyl 2-(4-methoxy-2-nitrophenyl)malonate (CAS 10565-15-8)
- 1-Cbz-3-oxopiperazine (CAS 78818-15-2)
- Methyl 5-cyano-1H-pyrrole-2-carboxylate (CAS 937-19-9)
- 4-(2-Bromo-phenyl)-3-chlorosulfonyl-5-trifluoro-methyl-thiophene-2-carboxylic acid methyl ester (CAS 1431555-32-6)
- 1-Azabicyclo[3.3.1]Nonan-3-amine (CAS 1824549-68-9)
- Atrasentan Impurity 49 (CAS 1059056-95-9)
- Peptide Impurity 11 X TFA Salt (CAS CATO-CPTD788811)
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