Description
Phenol red
Phenolsulfonphthalein
MOLECULAR BIOLOGY GRADE
C19H14O5S
MW: 354.380 g/mol
Bright red powder
Forms a yellow to red or orange and clear to slightly turbid (traces of insoluble matter possible) solution when dissolved 0.1% in ethanol.
Transition of pH indicator: 6.8 – 8.2 yellow to red. Used in selective microbial culture media to detect lactose- or sucrose-fermenting bacteria.
Protect from light.