Hydroxypropyl Methylcellulose(HPMC) HPMC (Hydroxypropyl Methylcellulose) is a non-ionic cellulose ether derived from natural cellulose through chemical modification. It appears as a white or off-white powder, is ……继续阅读 » admin 4天前(06-08 01:20) 16浏览 0评论 0个赞