Product sourcing, supplier sourcing chemicals dyes dyestuffs
$30-250 USD
货到付款
We need to buy several dyes throughout the year. These dyes are rare, and are not readily available in the U.S.A.
Some of the dyes are stock dyes from Asia. Many of them need to be custom synthesized. Since the dyes are rare we do not have example synthesis for you.
In this project you will find sources of these dyes. We will provide you with CAS or structural drawing. We do not have C.I. numbers, or industry standard names. The dyes are primarily anthraquinone or azo dyes. We buy ACS grade dyes that have been purified by recrystallization, or other method, to remove salts and metal impurities.
Successful completion of this project may lead to additional F projects in the months to come.
Thank you for reading this project.
Chemistry Custom Synthesis Dyestuffs
项目ID： #8144519
关于项目
有13名威客正在参与此工作的竞标，均价$263/小时
Hi There, I am smtechnology, I have read your project brief and can see that you need sources of some dyes. I am highly qualified to do this sourcing project. I have more than 10 years of experience in this are 更多
I am a chemical engineer ,15 years experience in chemical industry,have a good computer staff experience. I will use my experience in real life and internet search to find any required materials
Hi! 20+ years implementing cutting edge e-procurement systems, designing ERP purchasing modules and extracting reports that inform business decisions. Sourced all manner of products, from tiny electronic components 更多
