PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19958429-1 2009 OBJECTIVES: N-undecyl-10-enoyl-L-phenylalanine (Sepiwhite), N-undecylenoyl phenylalanine), a reported alpha-melanocyte-stimulating hormone (MSH) receptor antagonist, has been observed to reduce melanin production in cultured melanocytes. N-undecyl-10-enoylphenylalanine 12-46 proopiomelanocortin Homo sapiens 102-153