Properties: White crystals, mp 290°. Sol in DMF, methanol, ethanol, propanol, butanol. Relatively insol in water, ether, cyclohexane, benzene, acetone, ethyl acetate. uv max (methanol): 208, 236 nm (A = 62.4, 64.4).
Melting point: mp 290°
Absorption maximum: uv max (methanol): 208, 236 nm (A = 62.4, 64.4)
Derivative Type: Berninamycinic acid
Percent Composition: C 49.66%, H 2.08%, N 9.65%, O 27.56%, S 11.05%
Properties: Golden needles, mp 210° (dec). pKa 5.8. Insol in water. uv max (0.01N HCl): 228, 272 nm (e 13500, 13500); uv max (0.01N NaOH): 232, 294 nm (e 9500, 13000).
Melting point: mp 210° (dec)
pKa: pKa 5.8
Absorption maximum: uv max (0.01N HCl): 228, 272 nm (e 13500, 13500); uv max (0.01N NaOH): 232, 294 nm (e 9500, 13000)
NOTE: The characteristics of berninamycin are similar to those previously reported in the literature for
theiomycetin: M. Shibata, Takeda Kenkyusho Nempo
18, 44 (1959), C.A.
54, 19840c (1960).
产品链接: 58798-97-3››