98%
AR,99%
≥97%
特纯,97%
USP级
K-30,分子量40000
PVP-40
PVP-360
BR,97%
90%
BR,98%
≥98%
mixture of isomers, ≥95%
99%
95%
BR,95%
AR
≥98.5%
AR,98%
GR,99%
CP,98%