CAS 56921-00-7 5-Ethylthiophene-2-sulfonyl chloride

1.Patent drugs, Only for science researching, Intermediates in bulk production, Standard substance, Target impurity compound R&D. 2.Non-Patent drugs, New Achievements for R&D agencies, pharmaceutical block, API bulk manufacturing. The pure target substance is the last stop of our product. In the certain quality, we provide the best price and most professional service. We announce: 1.None Fake goods/False certificate/lie/illegal thing in our sales net! 2.We are the Pharmaceutical/chemical R&D enterprise, we don't manufacture pill, capsule, medicine, vial, ampoule, tablet, drug.