4-tert-Butylcalix[4]arene 98%

With a vision to become a leading organization in Chemical Industry known for its Quality & Innovative Products and Awe-Inspiring Services, Dr. Silviu Pharmachem has been rigorously serving its customers globally for over 20 years now.    We are an ISO 9001-2015 certified company, supplying chemicals to over 35 countries, serving 150+ clients with our chemical catalogue containing 6 IPs.

Dr. Silviu Pharmachem offers a wide range of chemical products.   Our product basket includes 125+ chemicals including patented solutions, speciality chemicals and rare chemicals.

Being extremely quality conscious and reliable source for challenging molecules, the most of our products are treated as industry standards for cutting edge research and expanding frontiers in the industry.    We follow strict quality control procedures.    All required analytical tests are completed for NMR, LC-MS, GC-MS, FT-IR, HPLC, etc.