Phenolphthalein standard solution 1000μg/mL in Methanol 77-09-8 C₂₀H₁₄O₄ 318.32 g./mol ฿2,800.00 View
Phenol red pH indicator solution pH:6.6(YELLOW)-8.0(RED) 143-74-8 C₁₉H₁₄O₅S 354.38 g./mol ฿420.00 View