ProductsAntibioticsRk-682 Rk-682 SKU: R033-0.5MG Unit: Each Brand: TOKU-E Rk-682 Other products from «Antibiotics» Putrescine Dihydrochloride # P103-25G Dihydrospinosyn A Aglycone # D055-2.5MG ?-Mangostin # M077-50MG Spinosyn A 17-Pseudoaglycone # S085-5MG