filter4dProduct Details Specifications Documentation Backorder Policy The 4 Diamond Series plate and frame laboratory filter is desned for use in critical applications where hold-up volumes can beフェノールレッド liquid, 0.5%, sterile-filtered, BioReagent, suitable for cell culture; CAS Number: 143-74-8; Synonyms: Phenolsulfonphthalein solution at Sma-Aldrich