7,8-Dihydroxy-4-propyl-2h-chromen-2-one CAS 19040-67-6
| CAS No. | 19040-67-6 |
| Molecular Formula | C12H12O4 |
| Molecular Weight | 220.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 220.22 g/mol gives 7,8-Dihydroxy-4-propyl-2h-chromen-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7,8-Dihydroxy-4-propyl-2h-chromen-2-one (CAS 19040-67-6), molecular formula C12H12O4 and molecular weight 220.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 7,8-Dihydroxy-4-propyl-2h-chromen-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H12O4 |
| Molecular Weight | 220.22 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 chloroform, dichloromethane, ethyl acetate, 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 Dihydroxy Standards
- 6,7-Dihydroxy-4-propyl-2H-chromen-2-one (CAS 15941-64-7)
- 1-(5,6-Dihydroxy-2,7-dimethylbenzofuran-3-yl)ethanone (CAS 709640-99-3)
- 5,7-dihydroxy-2,6,8-trimethyl-4H-chromen-4-one (CAS 41682-21-7)
- 5,7-Dihydroxy-2-Isopropylchromone (CAS 96552-59-9)
- 5,7-Dihydroxy-4-propyl-2h-chromen-2-one (CAS 66346-59-6)
- 34272-68-9 6-({[(11|A)-11,17-dihydroxy-3,20-dioxopregna-1,4-dien-21-yl]oxy}carbonyl)cyclohex-3-ene-1-carboxylic acid AR-1G9652 (CAS 34272-68-9)
- 2,2-Dihydroxy-1-[4-(trifluoromethyl)phenyl]ethanone (CAS 101906-05-2)
- N,2-Dihydroxy-4-(trifluoromethyl)benzamide (CAS 394-37-6)
Recommended Standards
- 2-(2-Methylpropoxy)-4-nitrobenzonitrile (CAS 1881330-27-3)
- [1,1'-Biphenyl]-2,2',3,3'-tetraol (CAS 19261-03-1)
- 6-Hydroxy-DL-tryptophan (CAS 18749-30-9)
- (2R)-2-Ethyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid (CAS 1932671-26-5)
- 4-Bromo-N-(4-chloro-5-cyanothiazol-2-yl)benzamide (CAS 206983-15-5)
- Tyrosine kinase-IN-1 (CAS 705946-27-6)
- Idazoxan hydrochloride, 98% (CAS 79944-56-2)
- (S)-(2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methanamine (CAS 46049-49-4)
- 2-HYdroxy-3-nitroquinoline oh-form, me ether (CAS 36255-31-9)
- (5-Bromo-2-chlorophenyl)(4-methoxypiperidin-1-yl)methanone (CAS 1183379-23-8)
- 2-Chloro-3-(3-methylphenyl)-1-propene (CAS 731772-16-0)
- Methyl 6-fluorobenzofuran-3-carboxylate (CAS 1103768-31-5)
- 4-Iodo-3-methoxy-1H-indazole (CAS 2322895-80-5)
- Liraglutide(10-22)TFA Salt (CAS CATO-C4X-199211)
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