3-Benzyl-4-methyl-7-(oxiran-2-ylmethoxy)-2h-chromen-2-one CAS 951626-37-2
| CAS No. | 951626-37-2 |
| Molecular Formula | C20H18O4 |
| Molecular Weight | 322.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Benzyl-4-methyl-7-(oxiran-2-ylmethoxy)-2h-chromen-2-one (CAS 951626-37-2), molecular formula C20H18O4 and molecular weight 322.35 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18O4, 3-Benzyl-4-methyl-7-(oxiran-2-ylmethoxy)-2h-chromen-2-one contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 322.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C20H18O4 |
| Molecular Weight | 322.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Recommended Standards
- 3,3'-(Anthracene-9,10-diyl)dipropanoic acid (CAS 71367-28-7)
- 3-Ethoxy-4-(naphthalen-1-ylmethoxy)benzoic acid (CAS 938341-81-2)
- 3-(4-Methoxyphenyl)-7-((2-methylallyl)oxy)-2H-chromen-2-one (CAS 859658-52-9)
- 5-(Benzyloxy)-2-(benzyloxymethyl)-4H-pyran-4-one (CAS 892152-75-9)
- Methyl 4-[(3-pyrrolidinylmethoxy)methyl]benzoatehydrochloride (CAS 1219972-28-7)
- (2-Methoxy-4-(piperazin-1-yl)phenyl)boronic acid (CAS 2225180-90-3)
- Nicotinic acid 4-formyl-phenyl ester (CAS 15131-72-3)
- 2-Bromo-1-(3-methylphenyl)propan-1-one (CAS 1451-83-8)
- 3-(3-Chlorophenoxy)azetidine (CAS 868833-95-8)
- 1,2-Dihydro-1,2,4,5-tetrazine-3,6-dicarboxylic acid (CAS 3787-09-5)
- 3-(Diallylamino)benzo[d]isothiazole 1,1-dioxide (CAS 866153-78-8)
- (3-(Methylamino)cyclobutyl)methanol (CAS 1513307-00-0)
- Ethyl 2-hydroxy-6-methylnicotinate (CAS 51146-04-4)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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