6-Hydroxy-9-(4-methoxy-2-methylphenyl)-3H-xanthen-3-one CAS 643755-84-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 643755-84-4 |
| Molecular Formula | C21H16O4 |
| Molecular Weight | 332.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 6-Hydroxy-9-(4-methoxy-2-methylphenyl)-3H-xanthen-3-one (CAS 643755-84-4) pharmaceutical standards reference standard. Molecular formula: C21H16O4. Molecular weight: 332.35 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H16O4 |
| Molecular Weight | 332.35 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
Related Hydroxy Standards
- N-Hydroxy-2-methyl-5-[(5-methyl-2-phenyl-4-oxazolyl)methyl]-1,3-dioxane-2-carboxamide (CAS 1297530-08-5)
- 4-(6-Hydroxy-1-(p-tolyl)-1H-indazol-3-yl)benzene-1,3-diol (CAS 680610-95-1)
- 1-benzyl-4-hydroxy-4-(4-methyl-1,3-thiazol-2-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1181521-21-0)
- Methyl 7-hydroxy-2-(4-methoxyphenyl)-3-oxo-2,3-dihydrothieno[3,2-c]pyridazine-6-carboxylate (CAS 338395-83-8)
- (R)-(+)-2-Hydroxy-1,2,2-triphenylethyl Acetate (CAS 95061-47-5)
- (S)-2-Hydroxy-1,2,2-triphenylethyl Acetate (CAS 95061-51-1)
- 5-Ethyl-4-hydroxy-3-(2-(5-methoxy-1H-indol-3-yl)ethyl)-4,5-dimethyloxazolidin-2-one (CAS 883291-40-5)
- 4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 177594-45-5)
Recommended Standards
- 6-Fluoro-4-hydroxy-N-(5-propyl-1,3,4-thiadiazol-2-yl)quinoline-3-carboxamide (CAS 951999-62-5)
- Dibenzo[a,i]pyrene[5,8]quinone (CAS 3302-52-1)
- 6,6'-Disulfanediylbis(benzo[d]oxazol-2(3H)-one) (CAS 289499-47-4)
- 2-((4-Amino-6-methylpyrimidin-2-yl)thio)-N-methylpropanamide (CAS 1311844-16-2)
- Iron(II) 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluoro-29H ,31H-phthalocyanine (CAS 23844-93-1)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1-(4-chlorophenyl)ethan-1-one (CAS 1823182-92-8)
- 6-Oxo-1,6-dihydropyrazine-2-carboxamide (CAS 15000-88-1)
- Manganese(III) chloride 5,10,15,20-tetrakis(4-pyridyl)-21<I>H</I>,23<I>H</I>-porphine chloride tetramethyl chloride (CAS 125565-45-9)
- Ethyl 2-chloro-4-fluoro-3-(trifluoromethyl)benzoate (CAS 1807270-17-2)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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