Potassium 8,9,10-trihydroxy-2,6-dioxo-2,6-dihydropyrano[3,2-c]isochromen-3-olate CAS 1780260-20-9
| CAS No. | 1780260-20-9 |
| Molecular Formula | C12H5O8 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Potassium 8,9,10-trihydroxy-2,6-dioxo-2,6-dihydropyrano[3,2-c]isochromen-3-olate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 316.26 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).
Potassium 8,9,10-trihydroxy-2,6-dioxo-2,6-dihydropyrano[3,2-c]isochromen-3-olate (CAS 1780260-20-9) is a high-purity analytical reference standard with the molecular formula C12H5O8K and a molecular weight of 316.26 g/mol.
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 | C12H5O8 K |
| Molecular Weight | 316.26 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
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Recommended Standards
- (4E)-2-Phenyl-4-{[(pyrazin-2-yl)amino]methylidene}-4,5-dihydro-1,3-oxazol-5-one (CAS 117904-21-9)
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- N-[(1-Methyl-1,2,3,4-tetrahydroquinolin-6-yl)-methyl]-3-morpholin-4-ylpropan-1-amine (CAS 1119450-30-4)
- 2,4-Dibromothiophene-3-carbonitrile (CAS 1256651-68-9)
- 7-(3-Fluorophenyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1031558-69-6)
- 1-(2-Methoxyethyl)-1H-pyrazole-4-sulfonyl Chloride (CAS 1183082-06-5)
- 7,8-Dimethoxyquinolin-4-amine (CAS 99878-77-0)
- 2-(4-Methoxyphenyl)-6-methylpyrimidin-4(1H)-one (CAS 16858-19-8)
- 9-Butyl-6-((pyridin-4-ylmethyl)thio)-9H-purin-2-amine (CAS 93477-14-6)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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