FUCHSIN ACID (M.S.) (C.I.No.42685) is a fine chemical product from the brand RESEARCH-LAB FINE CHEM INDUSTRIES. It is also known as Rubine S. Molecular Formula: C20H17N3Na2O9S3 CAS Number: 3244-88-0 Molecular Weight: 585.54 Quantity: 500 gm/Bottle Acid Fuchsin has been used in tissue sections for Massons trichrome staining. It has also been used as a marker to trace ingestion of solutions by green peach aphids.