摘要
Erythromycin thiocyanate is a major in-termediate for macrolide API(active phar-maceutical ingredients).Its downstreamproducts include erythromycin,azithromycin,clarithromycin androxithromycin.The output of erythromycin thiocy-anate in China reached around 8 thou-sand tons in 2006,an increase of around30% over 2005.Major producers todayinclude Ningxia Qiyuan PharmaceuticalCo.,Ltd.,Yidu HEC Biochem Co.,Ltd.,Sichuan Shanshan Pharmaceutical Co.,Ltd.,Henan Xinxiang Huaxing Medi-cines Factory and Xi’an Lijun Pharma-ceutical Co.,Ltd.The market share
