Langfang Longtengyu Fine Chemicals Co., Ltd are a professional manufacturer of 4-tert-butyl benzoic Acid(PTBBA)（CAS:98-73-7) and Methyl p-tert-Butyl Benzoate(CAS:26537-19-9) in China, with capacity of more than 3500mt per year. We have been manufacturing and exporting this product to many countries, with very good feedback from clients in Europe, Japan,korea and Latin America. Please find following the specification for your reference. We can also customize the quality according to your requirements. If you are interested, please visit www.lflty.com, and feel free to contact us for further information.