MERCK – 159375 Phenol Red (phenolsulfonphthalein)
Specifications :
- Assay (bromatometric, calculated on dried substance) : 98.0 – 102.0 %
- Identity (UV/VIS-Spectrum) : passes test
- Identity (Color transition) : passes test
- Identity (Bromination) : passes test
- Insoluble substances : ≤ 0.5
- Sulfated ash : ≤ 0.2
- Loss on Drying (105 °C) : ≤ 1.0