2-(3,4,5-Trihydroxyphenyl)chromane-3,4,5,7-tetraol CAS 491-52-1
| CAS No. | 491-52-1 |
| Molecular Formula | C15H14O8 |
| Molecular Weight | 322.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3,4,5-Trihydroxyphenyl)chromane-3,4,5,7-tetraol (CAS 491-52-1), molecular formula C15H14O8 and molecular weight 322.27 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 2-(3,4,5-Trihydroxyphenyl)chromane-3,4,5,7-tetraol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 322.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
As a certified reference material (CRM), 2-(3,4,5-Trihydroxyphenyl)chromane-3,4,5,7-tetraol 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 | C15H14O8 |
| Molecular Weight | 322.27 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Trihydroxyphenyl Standards
- 1-(2,4,6-Trihydroxyphenyl)dodecan-1-one (CAS 6790-21-2)
- 1-(2,3,4-Trihydroxyphenyl)decan-1-one (CAS 1154-72-9)
- 2-(3,4,5-Trihydroxyphenyl)chromen-4-one (CAS 126432-36-8)
- 1-(2,4,6-Trihydroxyphenyl)-2-p-tolylethanone (CAS 59108-68-8)
- 3-Phenyl-1-(2,3,4-trihydroxyphenyl)prop-2-en-1-one (CAS 1482-74-2)
- 2-Phenyl-1-(2,4,6-trihydroxyphenyl)ethanone (CAS 727-71-9)
- 1-(2,3,4-Trihydroxyphenyl)hexan-1-one (CAS 43043-26-1)
- 1-(2,4,6-Trihydroxyphenyl)hexan-1-one, 97% (CAS 5665-89-4)
Recommended Standards
- 1-Methyl-4-((5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)methyl)piperazine (CAS 2096336-20-6)
- 2-(4,4-Difluoro-1-(2-(trifluoromethyl)phenyl)cyclohexyl)acetic acid (CAS 2251053-58-2)
- (E)-4-({6-[2-Methoxy-1-(methoxycarbonyl)-2-oxoethyl]-3-pyridinyl}amino)-4-oxo-2-butenoic acid (CAS 860786-07-8)
- 2-(4,4-Difluoro-1-(3-(trifluoromethyl)phenyl)cyclohexyl)acetic acid (CAS 2251053-91-3)
- 7-(Trifluoromethoxy)indole (CAS 396075-91-5)
- 6-(Chloromethyl)-2-fluoro-3-methylpyridine (CAS 1260672-08-9)
- 2-methyl-1,1,3-trioxo-2,3-dihydro-1$l^{6},2-benzothiazole-6-carboxylic acid (CAS 1038706-82-9)
- 4-Methyl-3-(pyrrolidine-1-sulfonyl)aniline (CAS 947018-92-0)
- 6-Amino-1-phenyl-4-(pyridin-3-yl)-3-(trifluoromethyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 305868-30-8)
- Methylpyrrole-2-carboxylate (CAS 1193-62-0)
- 5-DFUR-D2 (Doxifluridine-D2) (CAS 84258-25-3)
- 5-[1-(4-Chloro-3,5-dimethylphenoxy)ethyl]-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 588673-91-0)
- n-(2-Methoxydibenzo[b,d]furan-3-yl)propane-1-sulfonamide (CAS 863417-53-2)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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