Product name: 2,4,5-7-Tetrabromofluorescein disodium salt
No.: A025
CAS No.: 17372-87-1
M F: C17H19N3O2
Property: Red crystal with blue gloss or brownish-red powder, easily soluble in water, slightly soluble in ethyl alcohol.
Molecular weight: 691.86
Use: As adsorption indicator, etc.
Technical index |
Item: | Technical grade |
Maximum absorption wavelength | 510-518 |
Mass-absorption coefficient (L/cm?g) | 115 |
Sensitivity test | Qualified |
Soluble test in water | Qualified |
Drying loss% | ≤9.0 |
Halide % | ≤2.0 |
Biological dyeing test | Qualified |