3',6'-Dihydroxy-4,5-diiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one CAS 31395-16-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 31395-16-1 |
| Molecular Formula | C20H10I2O5 |
| Molecular Weight | 584.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3',6'-Dihydroxy-4,5-diiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 31395-16-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H10I2O5. Molecular weight: 584.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H10I2O5 |
| Molecular Weight | 584.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | I-containing |
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