3-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid CAS 30468-06-5
| CAS No. | 30468-06-5 |
| Molecular Formula | C20H12O5 |
| Molecular Weight | 332.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid.
3-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 30468-06-5), molecular formula C20H12O5 and molecular weight 332.31 g/mol, is a CATO reference standard with documented purity and traceability.
3-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (C20H12O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 3-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H12O5 |
| Molecular Weight | 332.31 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Related Hydroxy Standards
- 4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 177594-45-5)
- 2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 518-45-6)
- 1-Hydroxy-2,3,4,7-tetramethoxyxanthone (CAS 14103-09-4)
- 6-Hydroxy-1,2,3,7-tetramethoxy-9H-xanthen-9-one (CAS 64756-87-2)
- Methyl 7-hydroxy-2-(4-methoxyphenyl)-3-oxo-2,3-dihydrothieno[3,2-c]pyridazine-6-carboxylate (CAS 338395-83-8)
- 7-Hydroxy-N-(3-(trifluoromethyl)-phenyl)quinoline-4-carboxamide (CAS 1624261-38-6)
- 2-Hydroxy-N-(3-(trifluoromethyl)-phenyl)quinoline-5-carboxamide (CAS 1624262-32-3)
- Methyl 4-hydroxy-1-((3-(trifluoromethyl)phenyl)carbamoyl)pyrrolidine-2-carboxylate (CAS 318247-30-2)
Recommended Standards
- 2-[(6-{[(3-methoxyphenyl)methyl]amino}-3-nitropyridin-2-yl)amino]acetic acid (CAS 329700-21-2)
- 3-(Naphthalen-1-yl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 926268-91-9)
- 3-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]-2-hydroxy-propanoic acid (CAS 2412988-79-3)
- 2-(2,6-dioxo-3-piperidyl)-5-(3-hydroxypropoxy)isoindoline-1,3-dione (CAS 2476318-89-3)
- 4-Methoxy-1-methyl-1H-imidazole-5-carboxamide (CAS 77444-75-8)
- sodium 2-methanesulfonamido-3-methylbutanoate (CAS 1396964-35-4)
- 5-[(2-hydroxyethyl)sulfanyl]-4-phenyl-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),5-trien-3-one (CAS 325700-59-2)
- 2'-Methoxy-[1,1'-biphenyl]-4-ol (CAS 65109-82-2)
- (2-Chloro-5-fluoro-3-methylpyridin-4-yl)boronic acid (CAS 1072944-10-5)
- Methyl 4-(1,1,2,2-tetrafluoroethoxy)benzoate (CAS 93982-47-9)
- {[1-(5-Chloro-2-thienyl)cyclopentyl]methyl}aminehydrochloride (CAS 1332531-63-1)
- Methyl (R)-2-(1-((2-aminopyridin-3-yl)oxy)ethyl)-4-fluorobenzoate (CAS 1454847-99-4)
- Ethyl 2-acetamido-3-(4-hydroxyphenyl)propanoate (CAS 30697-69-9)
- Peptide YY (3-36) (human) (CAS 123583-37-9)
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