SynonymsSpiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2'-[2H]pyran]; Antibiotic B 41D; Milbemycin EP Impurity C Close Spiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2'-[2H]pyran]; Antibiotic B 41D; Milbemycin EP Impurity C Related products Milbemycin A3 Oxime M.F. M.W. 541.69 CAT# AR-M01859 CAS# 114177-14-9 Milbemycin A4 Oxime M.F. M.W. 555.72 CAT# AR-M01860 CAS# 93074-04-05 Milbemycin D M.F. M.W. 556.74 CAT# AR-M01861 CAS# 77855-81-3