四氮唑乙酸 CAS:21732-17-2 Original price:300 Promotional price:200
4-(二乙氨基)-2-甲基苯甲 CAS:92-14-8 Original price:500 Promotional price:300
性状Appearance: 类白色或者黄红色结晶体Whiteoryellowishredcrystal
水分Water: ≤1.0%
总杂Totalimpurity:≤1.0%
最大单杂Singleimpurity:≤0.5%
纯度Purity:≥99%