2-Chloro-5-fluorobenzo[d]thiazol-6-ol CAS 2173205-63-3
| CAS No. | 2173205-63-3 |
| Molecular Formula | C7H3ClFNOS |
| Molecular Weight | 203.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Chloro-5-fluorobenzo[d]thiazol-6-ol (CAS 2173205-63-3), molecular formula C7H3ClFNOS and molecular weight 203.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Chloro-5-fluorobenzo[d]thiazol-6-ol (C7H3ClFNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 203.62 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-Chloro-5-fluorobenzo[d]thiazol-6-ol 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 | C7H3ClFNOS |
| Molecular Weight | 203.62 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.) | 1998 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-Chloro-6-hydroxynaphthalene-2-carbonitrile (CAS 1202880-08-7)
- methyl 3-(5-chloro-3-methyl-1,2-oxazol-4-yl)propanoate (CAS 1240961-14-1)
- 7-Chloro-5-fluoro-1,3-benzoxazole-2-thiol (CAS 1249781-75-6)
- (5-Chloro-2,3-dimethoxypyridin-4-yl)methanol (CAS 1305324-85-9)
- 3-Chloro-2-(3,3-difluorocyclobutyl)pyridine (CAS 1355070-38-0)
- Methyl 4-chloro-3-formyl-5,6-dihydropyridine-1(2H)-carboxylate (CAS 1708250-56-9)
- 6-Chloro-4,4-difluoro-1,2,3,4-tetrahydroquinoline (CAS 1782872-69-8)
- 6-Chloro-4,4-difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 1783891-88-2)
Recommended Standards
- 2-(3-Chloropropyl)-5-methyloxazole-4-carboxylic acid (CAS 929971-81-3)
- 2-Chlorobenzofuro[2,3-b]pyridine (CAS 31874-87-0)
- 2-Chloro-5,5-difluoro-5,6,7,8-tetrahydroquinoline (CAS 1935625-78-7)
- 2-Chloronaphtho[2,3-d]oxazole (CAS 439607-91-7)
- 6-Chloro-2-methyl-5-nitro-N-(pentan-3-yl)pyrimidin-4-amine (CAS 53039-38-6)
- tert-Butyl ((1R,2R)-2-(hydroxymethyl)cyclopropyl)carbamate (CAS 177472-54-7)
- 2-[(3-Morpholin-4-ylpropyl)amino]-5-nitrobenzonitrile (CAS 451459-94-2)
- 3-Hydroxy-3-methylbutyl methanesulfonate (CAS 135859-47-1)
- 6-Bromo-5-(difluoromethyl)-4-(trifluoromethyl)picolinonitrile (CAS 1806828-76-1)
- Ethyl 6-chloro-4-(4-chlorophenyl)-5-formyl-2-methyl-1,4-dihydropyridine-3-carboxylate (CAS 338966-68-0)
- 5-(Azepan-1-yl)-2-(methylsulfonyl)aniline (CAS 942474-92-2)
- 2-(2,5-Difluorophenyl)propan-2-amine (CAS 1176702-74-1)
- N-Methylquinolin-2-amine (CAS 52430-43-0)
- D-[Ser]8-Liraglutide (CAS CATO-C4X-199238)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com