A non-naturally occurring type-1 interferon having 166 amino acids produced by recombinant technique using a synthetic DNA coding sequence. As express, China A non-naturally occurring type-1 interferon having 166 amino acids produced by recombinant technique using a synthetic DNA coding sequence. As express Selling, Selling China A non-naturally occurring type-1 interferon having 166 amino acids produced by recombinant technique using a synthetic DNA coding sequence. As express, Nantong Reform Chemical Co.,Ltd.