2-Chloro-4,7-difluorobenzo[d]thiazole CAS 1177320-67-0
| CAS No. | 1177320-67-0 |
| Molecular Formula | C7H2ClF2NS |
| Molecular Weight | 205.61 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-difluorobenzo[d]thiazole.
2-Chloro-4,7-difluorobenzo[d]thiazole (CAS 1177320-67-0), molecular formula C7H2ClF2NS and molecular weight 205.61 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution, an aromatic ring system, 2-Chloro-4,7-difluorobenzo[d]thiazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 205.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 2-Chloro-4,7-difluorobenzo[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 | C7H2ClF2NS |
| Molecular Weight | 205.61 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 |
| 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.) | 1989 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-2,5-difluorophenylisothiocyanate (CAS 1263376-49-3)
- 1-Chloro-3,5-difluoro-2-isothiocyanatobenzene (CAS 1318938-19-0)
- 3-Chloro-2,4-difluorophenylisothiocyanate (CAS 1713163-05-3)
- 4-Chloro-2,6-difluorophenylisothiocyanate (CAS 1823834-97-4)
- 1-Chloro-4,5-difluoro-2-isothiocyanatobenzene (CAS 1895912-40-9)
- (2-Chloro-5-fluoro-6-methylpyridine-3,4-diyl)dimethanol (CAS 2713997-59-0)
- 2-Chloro-4,5-difluorobenzo[d]thiazole (CAS 898748-69-1)
- 2-Chloro-4,6-difluorobenzothiazole (CAS 252681-57-5)
Recommended Standards
- Ornidazole Impurity 98 (CAS CATO-C4X-133198)
- 3,3-Difluoropyrrolidine-1-sulfonyl chloride (CAS 1187160-31-1)
- Ornidazole Impurity 64 (CAS CATO-C4X-133164)
- Ornidazole Impurity 46 (CAS CATO-C4X-133146)
- 2-Ethylisothiazolidine 1,1-dioxide (CAS 73343-04-1)
- 2-(Bromomethyl)-3-ethylbenzo[d]thiazol-3-ium bromide (CAS 68277-83-8)
- 4-(4-Chlorophenyl)-2-[(E)-2-(dimethylamino)ethenyl]-6-methylpyridine-3,5-dicarbonitrile (CAS 337924-09-1)
- 2-{4-[(4-chlorophenyl)methyl]piperazin-1-yl}-1,3-benzothiazole (CAS 253440-41-4)
- 4-(2-Chloroacetyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 727717-71-7)
- 6-(4-Formylpiperazin-1-yl)-4-methylnicotinonitrile (CAS 1355232-07-3)
- 3,4,4a,5,6,7,8,8a-Octahydro-2H-pyrano[3,2-c]pyridine;hydrochloride (CAS 1363404-73-2)
- 4-Chloro-3-fluoroiodobenzene (CAS 202982-67-0)
- 2-Bromo-N-(2-(2-methylthiazol-4-yl)phenyl)benzamide (CAS 1705880-97-2)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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