2-[(Difluoromethyl)sulfanyl]-1,3-benzoxazole CAS 943-07-7
| CAS No. | 943-07-7 |
| Molecular Formula | C8H5F2NOS |
| Molecular Weight | 201.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-[(Difluoromethyl)sulfanyl]-1,3-benzoxazole 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.
CATO supplies 2-[(Difluoromethyl)sulfanyl]-1,3-benzoxazole (CAS 943-07-7), a certified reference material (molecular formula C8H5F2NOS, MW 201.19 g/mol) for analytical method development and quality control.
2-[(Difluoromethyl)sulfanyl]-1,3-benzoxazole (C8H5F2NOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H5F2NOS |
| Molecular Weight | 201.19 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.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Difluoromethyl Standards
- 2-(Difluoromethyl)-4-hydroxybenzothiazole (CAS 1261738-77-5)
- 2-(Difluoromethyl)benzo[d]thiazol-7-ol (CAS 1261746-39-7)
- 2-(Difluoromethyl)-7-mercaptobenzo[d]oxazole (CAS 1803741-34-5)
- 4-(Difluoromethyl)benzo[d]oxazole-2-thiol (CAS 1803742-87-1)
- 2-(Difluoromethyl)-6-mercaptobenzo[d]oxazole (CAS 1803810-48-1)
- 2-(Difluoromethyl)-4-mercaptobenzo[d]oxazole (CAS 1804200-52-9)
- 2-(Difluoromethyl)-5-mercaptobenzo[d]oxazole (CAS 1806490-68-5)
- Ethyl 2-(difluoromethyl)isonicotinate, 97% (CAS 1192539-75-5)
Recommended Standards
- 2-(4-(Trifluoromethyl)phenyl)cyclopropan-1-amine (CAS 2248-47-7)
- 2-[3-(Trifluoromethyl)phenyl]cyclopropan-1-amine (CAS 2711-57-1)
- 2-(1H-Imidazol-1-yl)-1H-purin-6-amine (CAS 2138216-97-2)
- 2-Methyl-5-(trifluoromethyl)isoindoline (CAS 205370-11-2)
- 4-Bromo-1-(bromodifluoromethyl)-1H-pyrazole (CAS 1046831-96-2)
- Fmoc-3-amino-3-(4-bromophenyl)propionic acid (CAS 269078-76-4)
- (2R,3S)-rel-2,3-Dibromo-1,4-butanediol (CAS 76818-94-5)
- 7-(Chloromethyl)-2-(tetrahydrofuran-2-yl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (CAS 1245569-88-3)
- Benzeneacetic acid, 3,4-dichloro-alpha-methyl-, methyl ester (CAS 185110-22-9)
- 3-Phenyl-1-(pyrrolidin-1-yl)propane-1-thione (CAS 575446-88-7)
- 2,3,5-Trimethyl Hexane (CAS 1069-53-0)
- 6-Azido-7-nitro-2,3-dihydro-1,4-benzodioxine (CAS 62089-17-2)
- 2-Amino-N,N-dimethyl-3-phenylpropanamidehydrochloride (CAS 1175090-79-5)
- Biotinyl-Neuropeptide W-23 (human) (CAS 1815618-09-7)
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