4,5,7-Trihydroxy-2h-chromen-2-one CAS 17575-26-7
| CAS No. | 17575-26-7 |
| Molecular Formula | C9H6O5 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4,5,7-Trihydroxy-2h-chromen-2-one (C9H6O5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4,5,7-Trihydroxy-2h-chromen-2-one (CAS 17575-26-7), molecular formula C9H6O5 and molecular weight 194.14 g/mol, is a CATO reference standard with documented purity and traceability.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H6O5 |
| Molecular Weight | 194.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Trihydroxy Standards
- 3,5,7-Trihydroxy-4H-chromen-4-one (CAS 31721-95-6)
- (R)-3,6,8-Trihydroxy-3,4-dihydronaphthalen-1(2H)-one (CAS 49598-85-8)
- 3-(2,3,4-Trihydroxy-phenyl)-acrylic acid (CAS 13058-13-4)
- 1-(2,4,6-Trihydroxy-3,5-dimethylphenyl)ethanone (CAS 13383-63-6)
- 2,2,4-Trihydroxy-3-methoxy-acetophenone (CAS 66922-70-1)
- 2,6,7-trihydroxy-9-(2-hydroxyphenyl)-3h-xanthen-3-one 36854-57-6 AR-1D4631 (CAS 36854-57-6)
- 2,4,6-Trihydroxy-3-methylbenzoic acid (CAS 95124-62-2)
- 3,4,6-Trihydroxy-2-methylbenzoic acid (CAS 27613-31-6)
Recommended Standards
- 3-(Difluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine-6-carbonitrile (CAS 1597952-88-9)
- 2-(difluoromethyl)benzo[d]oxazole-4-carbonitrile (CAS 1806282-45-0)
- 2-(5,6-Difluoro-2H-benzo[d][1,2,3]triazol-2-yl)acetonitrile (CAS 1553569-67-7)
- 2-Methoxy-5-nitrobenzo[d]oxazole (CAS 1806324-97-9)
- 2-Iodo-6,7,8,9-tetrahydro-4H-thieno[2,3-c]chromen-4-one (CAS 2839564-11-1)
- 2-(2-Amino-4,5-difluorophenyl)propan-2-ol (CAS 2370013-66-2)
- 4-Iodo-5-methylpicolinic acid (CAS 1487221-92-0)
- β-D-Lactopyranosylphenyl isothiocyanate (CAS 96324-93-5)
- 2-((Methylsulfonyl)methyl)acrylic acid (CAS 36525-60-7)
- Fenridazon-propyl (CAS 78778-15-1)
- tert-Butyl 6-oxo-8-oxa-2,5-diazaspiro[3.5]nonane-2-carboxylate (CAS 1251000-12-0)
- 5-(4-(5,5-Dimethyl-1,3,2-dioxaborinane)phenyl) dipyrromethane (CAS 1025707-99-6)
- Ceanothic acid (CAS 21302-79-4)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com