Aurin (C.I. 43800), sometimes named rosolic acid or corallin is an organic compound, forming yellowish or deep-red crystals with greenish metallic luster. It is practically insoluble in water, freely soluble in alcohol. It is soluble in strong acids to form yellow solution, or in aqueous alkalis to form carmine red solutions. Due to this behaviour it can be used as pH indicator with pH transition range 5.0 - 6.8. It is used as an intermediate in manufacturing of dyes.
MedKoo Cat#: 464079
Name: Aurin
CAS#: 603-45-2
Chemical Formula: C19H14O3
Exact Mass: 290.0943
Molecular Weight: 290.32
Elemental Analysis: C, 78.61; H, 4.86; O, 16.53
| Solvent | mg/mL | mM | |
|---|---|---|---|
| Solubility | |||
| Soluble in DMSO | 0.0 | 100.00 |
The following data is based on the product molecular weight 290.32 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
| 5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
| 10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
| 50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
