137724-66-4 2-CHLORO-1-FLUORO-4-ISOTHIOCYANATOBENZENE 3-Chloro-4-fluorophenyl isothiocyanate AKOS B006856 ART-CHEM-BB ACB001515 ART-CHEM-BB B006856 AS04353 BENZENE, 2-CHLORO-1-FLUORO-4-ISOTHIOCYANATO- OTAVA-BB 1055695 TIMTEC-BB SBB003683 CAS 137724-66-4
| CAS No. | 137724-66-4 |
| Molecular Formula | C7H3ClFNS |
| Molecular Weight | 187.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
137724-66-4 2-CHLORO-1-FLUORO-4-ISOTHIOCYANATOBENZENE 3-Chloro-4-fluorophenyl isothiocyanate AKOS B006856 ART-CHEM-BB ACB001515 ART-CHEM-BB B006856 AS04353 BENZENE, 2-CHLORO-1-FLUORO-4-ISOTHIOCYANATO- OTAVA-BB 1055695 TIMTEC-BB SBB003683 (CAS 137724-66-4), molecular formula C7H3ClFNS and molecular weight 187.62 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 137724-66-4 2-CHLORO-1-FLUORO-4-ISOTHIOCYANATOBENZENE 3-Chloro-4-fluorophenyl isothiocyanate AKOS B006856 ART-CHEM-BB ACB001515 ART-CHEM-BB B006856 AS04353 BENZENE, 2-CHLORO-1-FLUORO-4-ISOTHIOCYANATO- OTAVA-BB 1055695 TIMTEC-BB SBB003683 (C7H3ClFNS) is characterized by a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H3ClFNS |
| Molecular Weight | 187.62 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 |
| 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.) | 1996 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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