Purchase Qty. Reference FOB Price
1-999 kg US$12.50
1,000-9,999 kg US$9.50
10,000+ kg US$6.60
Product Description
China Supplier Supply CAS. 77-09-8 High Purity Phenolphthalein Product Description Phenolphthalein is a chemical that is commonly used as a colorimetric pH indicator. The compound has been observed to turn orange at pH <0, clear between pH 0-8.2, fuchsia between pH 8.2-12, and clear again ...