2,6-dichloro-5-methoxybenzo[d]thiazole CAS 38519-32-3
| CAS No. | 38519-32-3 |
| Molecular Formula | C8H5Cl2NOS |
| Molecular Weight | 234.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,6-dichloro-5-methoxybenzo[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.
2,6-dichloro-5-methoxybenzo[d]thiazole (CAS 38519-32-3), molecular formula C8H5Cl2NOS and molecular weight 234.10 g/mol, is a CATO reference standard with documented purity and traceability.
2,6-dichloro-5-methoxybenzo[d]thiazole (C8H5Cl2NOS) 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. 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.
Physical & Chemical Properties
| Molecular Formula | C8H5Cl2NOS |
| Molecular Weight | 234.10 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.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related dichloro Standards
- 5,7-Dichloro-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 100831-31-0)
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- 1,5-Dichloro-2-isothiocyanato-4-methoxybenzene (CAS 120222-84-6)
- (S)-2-(2,3-dichloro-5-fluorophenyl)pyrrolidine (CAS 1212890-41-9)
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Recommended Standards
- 2,3-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 879291-30-2)
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- 2,3-Diaminophenylboronic Acid Pinacol Ester (CAS 873663-50-4)
- 2-Ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 2223042-20-2)
- 6-Bromonaphthalene-1,2-diamine (CAS 1241377-74-1)
- 3-(4'-Bromophenyl)-6-methoxycoumarin (CAS 262591-02-6)
- (R)-1-(3,4-Difluorobenzyl)-2-oxo-N-(2-((2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)oxy)-1-phenylethyl)-1,2-dihydropyridine-3-carboxamide (CAS 1001409-50-2)
- 1-(2,2,2-Trifluoroethyl)-1h-imidazole-5-carboxylic acid (CAS 328569-22-8)
- 2-((Benzyloxy)methyl)furan (CAS 16361-14-1)
- rac-[6]-Gingerol (CAS 39886-76-5)
- Nicergoline (CAS 27848-84-6)
- 2-(5-Methyl-1,3,4-thiadiazol-2-yl)acetonitrile (CAS 1469012-19-8)
- 3-Methylisothiazolo[5,4-d]pyrimidin-4(5h)-one (CAS 58648-95-6)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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