Chengdu zyiochemical Technology Co., Ltd. (ZY Biochem.) is a word-class leading supplier of natural and non-natural protected amino acid derivatives and short peptide fragments. ZY Biochem was established in 1998. We provide amino acid derivatives with high quality, as well as custom synthesis services and professional polypeptide technical advisory services for our customers.成都郑源生化科技有限公司（郑源生化）是天然和非天然保护氨基酸衍生物以及短肽片段的世界级领先供应商。郑源生化成立于1998年。我们为客户提供高品质的氨基酸衍生物，同时也提供定制合成服务以及为客户提供专业的多肽技术咨询服务。