1) we are the sales represntative of the factory who produce this .
2) we are dealing in this field for more than ten years . we have experience to handle this
3) we have a laboratory which can test the materials in our own lab before export ,so we can gurantee to you the quality
4) payment terms : we can accept t.t ,dp ,lc 60 days . more flexible .
5)we enjoy a good reputation in china ,so you can trust us .
cas no: 70288-86-7
formula and molecular weight
h2b1a: c48h74o14=875.1
h2b1b: c47h72o14=861.
einecs 274-536-0
specific optical rotation: -17~ -20 degree,
relative material: majors: 2.5% max,
others: 1% max,
total impurity: 5.0% max,
ethanol and formamide: ethanol: 5.0% max,
formamide: 3.0% max,
residue on ignition: 0.1% max,
heavy metal: 0.002% max,
water: 1.0% max,
properties: white or yellowish-white crystalline powder