2,3,5-trimethyl pyrazine

Qingdao free trade zone united international co.,ltd founded in 1996, is a group company specialized in manufacturing and supplying food & nutritional ingredients, aroma chemicals pharmaceuticals and feed additives for diversified industries worldwide. as a very good team with experienced staff, united international inc. has been serving the demanding customer with high quality products, the most competitive price, on-time availability and up-to-date market information in the last decade. together with our r & d lab, we will focus on the most innovative solution to ensure the consistency both in strength and quality, and the needs with customers formulations and batch sizes to meet the requirements of your business. with a commitment of building a top-grade company based on chinese sources, united international inc. keeps improving itself and has passed iso-sgs9001 quality management system and iso-sgs14000 environmental management system. we are committed to create win/win/win value of business and the satisfaction more than our customers demand with our excellent service.