1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-sulphonic anhydride CAS NO.36913-91-4

1 good quality, better price and bettter service；
2 Timely delivery；
3 100% refunded if parcel is t delivered or poor quality.
We will try to satisfy you upon receipt of your reply. I hope that we can become a long-term cooperative partner.