5-Fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine CAS 1256256-02-6
| CAS No. | 1256256-02-6 |
| Molecular Formula | C14H19BFNO3 |
| Molecular Weight | 279.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
5-Fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 1256256-02-6), molecular formula C14H19BFNO3 and molecular weight 279.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine (C14H19BFNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 279.11 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C14H19BFNO3 |
| Molecular Weight | 279.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluoro Standards
- N-(4-Fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetamide (CAS 1150271-55-8)
- N-(5-Fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetamide (CAS 1150271-67-2)
- 7-Fluoro-3,4-dihydro-2H-1,4-benzoxazine-6-boronic acid pinacol ester, 97% (CAS 1256255-84-1)
- 8-Fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2h-benzo[b][1,4]oxazine (CAS 1256255-96-5)
- N-[2-Fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetamide (CAS 1356943-52-6)
- 2-[3-Fluoro-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]acetamide (CAS 1627857-32-2)
- N-(2-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetamide (CAS 1638329-59-5)
- 2-Fluoro-n-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 2377607-34-4)
Recommended Standards
- 2-Bromo-5-methoxy-6-(methylthio)-3-nitropyridine (CAS 127356-33-6)
- 5-Acetamido-2-fluorophenylboronic Acid Pinacol Ester (CAS 1350558-27-8)
- 3-Bromo-5-(methylsulfonyl)benzoic Acid (CAS 1186518-98-8)
- 5-Bromo-1-(3-fluoro-4-methylphenyl)-1H-pyrrole-2-carbonitrile (CAS 142045-52-1)
- 6-Bromo-3-(difluoromethyl)-5-iodopicolinaldehyde (CAS 1806909-08-9)
- Cefazolin Impurity 36 (CAS 5456-21-3)
- N-(5-(Aminomethyl)-4-cyclopropoxypyridin-3-yl)methanesulfonamide (CAS 1243460-05-0)
- 3,5-Bis(2,4-dimethoxyphenyl)-1H-pyrazole (CAS 1228933-23-0)
- 3-Oxobutanoic Acid 2-Acetoxy-2-methylpropyl Ester-d6 (CAS 1185147-99-2)
- 5-Vinylpyridin-2-ol (CAS 1147938-98-4)
- 1-(6-Aminobenzo[d]oxazol-2-yl)ethanone (CAS 1159534-45-8)
- [4-(Thiophene-2-carbonyl)-piperazin-1-yl]-thiophen-2-yl-methanone hydrochloride (CAS 1185303-53-0)
- (S)-2-(3-bromo-5-(tert-butyl)-2-fluorophenyl)pyrrolidine (CAS 1703910-30-8)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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