Aqueous Phenol Red Solution, 0.02%, 500mL

This 500mL bottle contains a 0.02% aqueous phenol red solution. Phenol red is a pH indicator that transitions from yellow (below pH 6.8) to red (above pH 8.2), making it useful for monitoring pH changes in the near-neutral range. Phenol red is widely used in biology and chemistry laboratories, particularly in cell culture media to monitor pH. Safe handling and storage procedures are printed on the bottle. Manufactured in the United States. For laboratory use only.