7-Fluoro-2,3,4,5-tetrahydro-1-benzoxepin-5-one CAS 774-20-9
| CAS No. | 774-20-9 |
| Molecular Formula | C10H9FO2 |
| Molecular Weight | 180.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Fluoro-2,3,4,5-tetrahydro-1-benzoxepin-5-one (CAS 774-20-9), a certified reference material (molecular formula C10H9FO2, MW 180.18 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 7-Fluoro-2,3,4,5-tetrahydro-1-benzoxepin-5-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 180.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C10H9FO2 |
| Molecular Weight | 180.18 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 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Fluoro Standards
- 7-fluoro-4-methyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 1033312-09-2)
- 7-Fluoro-4-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-31-3)
- 6-Fluoro-4-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-59-5)
- 4-Fluoro-6-methoxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-61-9)
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- 6-Fluoro-7-methylchroman-4-one (CAS 1092349-34-2)
- 9-Fluoro-3,4-dihydrobenzo[b]oxepin-5(2H)-one (CAS 1094299-21-4)
- 6-Fluoro-3-methyl-chroman-4-one (CAS 113209-67-9)
Recommended Standards
- 7-amino-6-fluoro-3,4-dihydroquinolin-2(1H)-one (CAS 425704-63-8)
- 7-Fluoro-6-methoxy-2,3-dihydro-1H-inden-1-one (CAS 295779-79-2)
- 6-Nitrobenzo[d]isothiazole (CAS 540493-14-9)
- 7-Nitrobenzo[d]thiazole (CAS 2942-05-4)
- Ethyl 8-aminooctanoate hydrochloride (CAS 29833-31-6)
- 1-(3-chloro-4-fluorophenyl)-4-(diethoxymethyl)-1H-1,2,3-triazole (CAS 1461706-60-4)
- 2-Bromopropiophenone (CAS 62403-86-5)
- 2-(1-methoxyethyl)-1,3-thiazole-5-carboxylic acid (CAS 1384428-28-7)
- Bis(4-hydroxyphenyl) Disulfide (CAS 15015-57-3)
- 4-Chloro-5-morpholinopyridazin-3-ol (CAS 944-88-7)
- 7ZX20DXB9Z 446-52-6 o-Fluorobenzaldehyde Benzaldehyde, o-fluoro- (8CI) Benzaldehyde, 2-fluoro- 2-Fluorobenzaldehyde 4-07-00-00559 (Beilstein Handbook Reference) BRN 0507155 EINECS 207-171-2 NSC 66829 UNII-7ZX20DXB9Z (CAS 446-52-6)
- (1-(3-Chlorophenyl)-3-(2,4-dichloro-5-fluorophenyl)-1H-pyrazol-4-yl)methanol (CAS 618441-75-1)
- Benzyl methyldisulfide (CAS 699-10-5)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
Why CATO?
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