1,4-Difluoro-2-(isocyano(tosyl)methyl)benzene CAS 668981-01-9
| CAS No. | 668981-01-9 |
| Molecular Formula | C15H12F2NO2S |
| Molecular Weight | 308.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,4-Difluoro-2-(isocyano(tosyl)methyl)benzene 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.
1,4-Difluoro-2-(isocyano(tosyl)methyl)benzene (CAS 668981-01-9), molecular formula C15H12F2NO2S and molecular weight 308.32 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,4-Difluoro-2-(isocyano(tosyl)methyl)benzene (C15H12F2NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.5, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 308.32 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H12F2NO2S |
| Molecular Weight | 308.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-(4-Fluorophenyl)-2-oxoethyl 4-methylbenzenesulfonate (CAS 357952-79-5)
- Triisopropyl(trifluoromethyl)silane (CAS 199383-06-7)
- 1-(4-Methoxyphenyl)pyrrolidine-3-carboxylic acid 933759-87-6 (CAS 933759-87-6)
- 3-(2,4-Dichloro-5-fluorophenyl)-1-(o-tolyl)-1H-pyrazole-5-carboxylic acid (CAS 618382-95-9)
- Dexmedetomidine Impurity 57 (CAS 617-86-7)
- 4-Oxo-4-(4-phenoxyphenyl)butanoic acid (CAS 36330-86-6)
- 7,8-Difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 1341921-45-6)
- 2-(7-Fluoro-3-indolyl)-2-oxoacetic Acid (CAS 1082892-91-8)
- Evocalcet Impurity 73 (CAS 15297-34-4)
- [(4-tert-Butylphenyl)thio]acetonitrile (CAS 7605-24-5)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788692)
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