3,4-Dihydroxy-2-methoxy-9H-xanthen-9-one CAS 6702-55-2
| CAS No. | 6702-55-2 |
| Molecular Formula | C14H10O5 |
| Molecular Weight | 258.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dihydroxy-2-methoxy-9H-xanthen-9-one (CAS 6702-55-2), molecular formula C14H10O5 and molecular weight 258.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 3,4-Dihydroxy-2-methoxy-9H-xanthen-9-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 258.23 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).
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.
CATO manufactures 3,4-Dihydroxy-2-methoxy-9H-xanthen-9-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H10O5 |
| Molecular Weight | 258.23 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1958 |
Related Dihydroxy Standards
- 2,5-Dihydroxy-1-methoxy-9H-xanthen-9-one (CAS 173220-32-1)
- 1,3-Dihydroxy-5-methoxy-9H-xanthen-9-one (CAS 6563-47-9)
- 1,7-Dihydroxy-4-methoxy-9H-xanthen-9-one (CAS 87339-76-2)
- 3-((4,6-Dihydroxy-5-isopropylpyrimidin-2-yl)thio)propanoic acid (CAS 337499-88-4)
- 6-Benzyl-2,4-dihydroxy-5,6-dihydro-7H-pyrrolo[3,4-d]pyrimidin-7-one (CAS 19068-66-7)
- 1,3-Dihydroxy-7-methoxyacridin-9(10H)-one (CAS 612541-98-7)
- 1,7-Dihydroxy-3-methoxyacridin-9(10H)-one (CAS 612541-97-6)
- 7,4’-Dihydroxy-8-methylflavan (CAS 82925-55-1)
Recommended Standards
- 3-(6-Nitro-1H-benzo[d][1,2,3]triazol-1-yl)cyclohex-2-en-1-one (CAS 865073-47-8)
- 3’-O-Methyluridine (CAS 6038-59-1)
- 3-(5-Nitrofuran-2-yl)-2-phenylacrylamide (CAS 53757-31-6)
- 3-Acetyl-5-(1-methyl-1H-benzo[d]imidazol-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 78620-26-5)
- 4-Amino-5-cyclobutyl-2-hydroxy-3-oxopentanamide hydrochloride (CAS 1447607-81-9)
- N-(2-bromophenyl)-2-((4-chlorobenzyl)thio)acetamide (CAS 329078-88-8)
- 4-Chloro-2-methoxy-5-nitropyrimidine (CAS 1375065-27-2)
- 8-Chloro-2-methylquinoline-3-carboxylic acid (CAS 1089898-90-7)
- 6-Bromo-8-(difluoromethyl)-4-(hydroxymethyl)phthalazin-1(2H)-one (CAS 2836225-58-0)
- 4-Chloro-2-(trifluoromethyl)nicotinaldehyde (CAS 1211583-98-0)
- N-(2-fluorophenyl)-2-phenoxyacetamide (CAS 331270-59-8)
- 3,3,4,4,5,5,6,6,6-Nonafluorohexyl (2,2,3,3-tetrafluoropropyl) carbonate (CAS 1980044-98-1)
- 5-Fluoro-1-methyl-1H-imidazole-2-carbonitrile (CAS 1956380-16-7)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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