3-bromo-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphtho[2,3-b]thiophene 2024년 6월 26일 L Biochem 3-bromo-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphtho[2,3-b]thiophene CAS # 2647492-94-0 98%