Diofenolan CAS 63837-33-2
| CAS No. | 63837-33-2 |
| Molecular Formula | C18H20O4 |
| Molecular Weight | 300.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Diofenolan is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Diofenolan (CAS 63837-33-2) is a high-purity analytical reference standard with the molecular formula C18H20O4 and a molecular weight of 300.35 g/mol.
The molecular framework of Diofenolan (C18H20O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C18H20O4 |
| Molecular Weight | 300.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Recommended Standards
- Bifenazate (CAS 149877-41-8)
- 1-(4-((1-(p-Tolyl)-1H-tetrazol-5-yl)methyl)piperazin-1-yl)ethan-1-one (CAS 1049366-02-0)
- Tripropylene Glycol Diacrylate (stabilized with MEHQ) (CAS 42978-66-5)
- Disperse black 9 (CAS 12222-69-4)
- (1S)-6,6'-Dibromo[1,1'-binaphthalene]-2,2'-diamine (CAS 947337-17-9)
- (R)-2-(4-chlorophenyl)-2-(methylamino)ethan-1-ol (CAS 1336356-75-2)
- 1,4-Bis(triphenylsilyl)benzene (CAS 18856-08-1)
- 1-(4-Fluorobenzyl)-4-methyl-1,4-diazepane (CAS 280560-98-7)
- (R)-2-(4-chloro-3-methylphenyl)-2-(methylamino)ethan-1-ol (CAS 1336238-13-1)
- 1-Iodopropane (stabilized with Copper chip) (CAS 107-08-4)
- 4-Isopropoxy-2-methyl-6-(4-(propylsulfonyl)piperazin-1-yl)pyrimidine (CAS 946233-40-5)
- Methyl 4-({2-[(E)-2-(2,4-dichlorophenyl)ethenyl]-1H-1,3-benzodiazol-1-yl}methyl)benzoate (CAS 206982-89-0)
- 2-(2-methyl-4-nitrophenoxy)ethan-1-ol (CAS 1353946-19-6)
- Semaglutide Impurity 180 (CAS CATO-C4X-2226180)
Why CATO?
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