3-Hydroxy-2-methoxy-9H-xanthen-9-one CAS 33018-28-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 33018-28-9 |
| Molecular Formula | C14H10O4 |
| Molecular Weight | 242.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Hydroxy-2-methoxy-9H-xanthen-9-one (CAS 33018-28-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H10O4. Molecular weight: 242.23 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H10O4 |
| Molecular Weight | 242.23 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
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Recommended Standards
- 3'-Formyl-4'-hydroxy-[1,1'-biphenyl]-4-carboxylic acid (CAS 893737-81-0)
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- N-((3R,4R)-3-((6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazolin-2-yl)amino)tetrahydro-2H-pyran-4-yl)acrylamide (CAS 1707289-24-4)
- (5-Cyclopropoxy-6-(methylthio)pyridin-2-yl)methanamine (CAS 1243382-26-4)
- (1E)-1-(5-Chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)-N-(4-chlorophenyl)methanimine (CAS 320422-65-9)
- 3-methyl-1-(pyridin-2-yl)butan-1-ol (CAS 1184413-15-7)
- 2-Amino-5-fluorobenzoic acid (CAS 446-08-2)
- Tert-butyl 4-(3-fluoro-2-hydroxypropyl)piperazine-1-carboxylate (CAS 184042-95-3)
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