Properties: Sol in n-hexane, benzene, acetone, ethanol, methanol, chloroform; very slightly sol in water.
Derivative Type: Milbemycin a1 see Milbemectin
Derivative Type: Milbemycin b1
CAS Registry Number: 51596-16-8
Additional Names: 25a-Methylmilbemycin B; antibiotic B-41A1
Percent Composition: C 70.56%, H 8.88%, O 20.56%
Properties: Amorphous solid. [a]D20 +160° (c = 0.25 in acetone). uv max (ethanol): 245 nm (e 26500).
Optical Rotation: [a]D20 +160° (c = 0.25 in acetone)
Absorption maximum: uv max (ethanol): 245 nm (e 26500)
Derivative Type: Milbemycin D
CAS Registry Number: 77855-81-3
Additional Names: (6R,25R)-5-O-Demethyl-28-deoxy-6,28-epoxy-25-(1-methylethyl)milbemycin B; antibiotic B-41D
Percent Composition: C 71.19%, H 8.69%, O 20.12%
Properties: Colorless needles from hexane-ethyl acetate (20:1), mp 186-188°. [a]D27 +107° (c = 0.25 in acetone). uv max (ethanol): 244 nm (31000).
Melting point: mp 186-188°
Optical Rotation: [a]D27 +107° (c = 0.25 in acetone)
Absorption maximum: uv max (ethanol): 244 nm (31000)
Therap-Cat-Vet: Antiparasitic.
产品链接: 51570-36-6››