4-(2,6,7-Trihydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid CAS 219305-27-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 219305-27-8 |
| Molecular Formula | C20H12O7 |
| Molecular Weight | 364.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2,6,7-Trihydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid (CAS 219305-27-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H12O7. Molecular weight: 364.31 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H12O7 |
| Molecular Weight | 364.31 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.) | 2019 |
Related Trihydroxy Standards
- 2-(4,5,6-Trihydroxy-3-oxo-3h-xanthen-9-yl)-benzoic acid (CAS 518-41-2)
- 1,5,8-Trihydroxy-2-(p-tolylamino)anthracene-9,10-dione (CAS 61548-23-0)
- 4,7,9-Trihydroxy-1-(4-hydroxyphenyl)-6H-anthra[1,9-bc]furan-6-one (CAS 1190948-58-3)
- 3,5,7-Trihydroxy-3',4',5'-trimethoxyflavone (CAS 146132-95-8)
- 3,4',5-Trihydroxy-3',6,7-Trimethoxyflavone (CAS 578-71-2)
- 4',5,7-Trihydroxy 3,6,8-trimethoxyflavone (CAS 57393-71-2)
- 3',5,7-Trihydroxy 4',5',6-trimethoxyflavone (CAS 78417-26-2)
- 3,5,7-Trihydroxy-2-(3-hydroxy-2,2-dimethylchroman-6-yl)-4H-chromen-4-one (CAS 197304-01-1)
Recommended Standards
- F5097NG7JT 24751-69-7 Nucleocidin Nulceocidin Adenosine, 4'-C-fluoro-, 5'-sulfamate T-3018 Antibiotic T-3018 4'-C-Fluoroadenosine 5'-sulfamate 4'-Fluoro-5'-O-sulfamoyladenosine 9-(4-Fluoro-5-O-sulfamoylpentofuranosyl)adenine NSC 521007 UNII-F5097NG7JT (CAS 24751-69-7)
- 1,3-Bis[4-(trifluoromethyl)phenyl]thiourea (CAS 1744-07-6)
- 2,2'-((2-((Carboxymethyl)(2-((carboxymethyl)(nitroso)amino)ethyl)amino)ethyl)azanediyl)diacetic Acid (CAS CATO-C3D-262818)
- 2-Amino-4-methoxybenzyl Alcohol (CAS 187731-65-3)
- 3-(Cyclohexylmethyl)-2-hydroxybenzamide (CAS 1243347-52-5)
- 1-(3-Fluoro-4-isobutoxyphenyl)ethanone (CAS 1019595-36-8)
- 1-(4-Ethylbenzyl)azetidine-3-carboxylic acid (CAS 1339834-39-7)
- 3-(1-((1-Methyl-1H-imidazol-4-yl)sulfonyl)pyrrolidin-3-yl)thiazolidine-2,4-dione (CAS 1795364-40-7)
- 2-Amino-4-ethoxypyrimidine-5-carboxylic acid (CAS 72411-91-7)
- Semaglutide Impurity 6 (CAS 62-57-7)
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