Choose Options Quick view 3,4-Dihydroxybenzoic Acid MSRP: Now: $89.93 Was: D2021 MSRP: Now: $89.93 Was: Choose Options Quick view Qty in Cart: 0 Quantity: Decrease Quantity of 3,4-Dihydroxybenzoic Acid Increase Quantity of 3,4-Dihydroxybenzoic Acid Price: MSRP: Now: $89.93 Was: Subtotal: Choose Options