Thieno[3,4-b]-1,4-dioxin,5,7-dibromo-2,3-dihydro- CAS NO.174508-31-7

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.