强力***DoxycyclineHyclateC22H24N2O8·HCl·1/2C2H6O·1/2H2O512.9[24390-14-5]质量标准:英国药典2000版性状：***结晶粉末PH值：2.0～3.0比旋度：-105°~-120°吸光率：349nm下300~335杂质光吸收：490nm下≤0.07相关杂质：乙醇：4.3~6.0***：≤50ppm水分：1.4%~2.8%***盐灰烬：≤0.4%***内***：≤1.14I.U./mgQualitystandard:BP2000Characters:AyellowcrystallinepowderPH:2.0~3.0Specificopticalrotation:-105°~-120°Absorbance:300~335@349nmLight-absorbingimpurities:≤0.07@490nmRelatedsubstancesEthanol:4.3~6.0He***ymetals:≤50ppmWater:1.4%~2.8%Sulphatedash:≤0.4%Bacterialendotoxins:≤1.14I.U./mg)