4-FBF 4FBF 4-Fluorobutyrfentanyl p-FBF CAS NO.4631-27-0 Name: 4-FBF Purity: >99.9% Model No.: top grade Min.Order: 1 Gram Means of Transport: Land, Ocean, Air Production Capacity: 500kg/month Packing:Aluminum foil bag--Inner double plastic bags Delivery Date: 24h after the ...