(19E)-4-fluoro-22-oxa-1,5,8,13,15,26-hexaazatetracyclo[19.3.1.1¹⁰,¹⁴.0²,⁷]hexacosa-2,4,6,10,12,14(26),19-heptaen-9-one CAS 2227259-20-1
| CAS No. | 2227259-20-1 |
| Molecular Formula | C19H21FN6O2 |
| Molecular Weight | 384.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (19E)-4-fluoro-22-oxa-1,5,8,13,15,26-hexaazatetracyclo[19.3.1.1¹⁰,¹⁴.0²,⁷]hexacosa-2,4,6,10,12,14(26),19-heptaen-9-one (CAS 2227259-20-1), a certified reference material (molecular formula C19H21FN6O2, MW 384.41 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, (19E)-4-fluoro-22-oxa-1,5,8,13,15,26-hexaazatetracyclo[19.3.1.1¹⁰,¹⁴.0²,⁷]hexacosa-2,4,6,10,12,14(26),19-heptaen-9-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.41 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.
Physical & Chemical Properties
| Molecular Formula | C19H21FN6O2 |
| Molecular Weight | 384.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
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Recommended Standards
- ({4-[(2-naphthylsulfonyl)amino]benzoyl}amino)acetic acid (CAS 796083-82-4)
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- 7-Hydroxy-3-(4-propylphenoxy)-2-(trifluoromethyl)-4h-chromen-4-one (CAS 315233-03-5)
- (1R,2R,3R,4S)-Cyclohex-5-ene-1,2,3,4-tetraol (CAS 6090-98-8)
- 1-Phenylpropan-2-one Oxime (CAS 13213-36-0)
- 2-Amino-6-methylnicotinic acid ethyl ester (CAS 70959-85-2)
- 4-(Bromomethyl)-1-methylpyridin-2(1H)-one (CAS 1236031-42-7)
- (3R,4R)-3-[2,6-Bis(acetyloxy)-4-pentylphenyl]-4-(1-methylethenyl)-1-cyclohexene-1-carboxaldehyde (CAS 380495-74-9)
- 1-(pyrrolidin-3-yl)-2,5-dihydro-1H-pyrrole (CAS 1354954-30-5)
- 1,1,2,2-Tetrakis(4-fluorophenyl)ethene (CAS 435-08-5)
- 2,2,2-trifluoroethyl N-(6-chloro-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl)carbamate (CAS 1221725-15-0)
- Semaglutide impurity 40 (CAS CATO-C4X-222640)
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