产品编号:WNLZ021(CAS:881732-90-7)为游离形式;
产品编号:WNLZ021(CAS:881680-88-2)与产品编号:WNLZ023(CAS:2650810-07-2)为同一产品不同CAS号,该产品盐形式为2HCl ;
产品编号:WNLZ005(CAS:928325-82-0)盐形式为富马酸盐