Shanghai Yongzeng Chemical Co.,Ltd; we supply p-Toluenesulfonic anhydride [4124-41-8]; by improving the technology,our product has more excellent quality and lower cost, that you can get more competitive price from us; we ensure the content of product:98%min and white crystal powder.
we would like to introduce you ourselves as reputed phamraceutical and intermediates market house in China with well established clients. our main product is pranlukast intermediates, please log on our company website: http://www.allyzchem.com/htmlmodel/yjml/2370220/1.html
please contact with our company staff; Our vision is Integrity, Customer First, Win-Win and Co-development.With our effort, we has and will go on cooperating with customers at home and abroad for a win-win relationship