121822-23-9 63-O-Sulfo-tyr-hirudin (53-64) Asparaginyl-glycyl-aspartyl-phenylalanyl-glutamyl-glutamyl-isoleucyl-prolyl-glutamyl-glutamyl-O-sulfotyrosyl-leucine BG 8865 Hirudin (53-64), O-sulfo-tyr(63)- Hirudin (53-64), O-sulfotyrosine(63)- Hirudin dodecapeptide L-Leucine, N-(N-(N-(N-(1-(N-(N-(N-(N-(N-(N-L-asparaginylglycyl)-L-alpha-aspartyl)-L-phenylalanyl)-L-alpha-glutamyl)-L-alpha-glutamyl)-L-isoleucyl)-L-prolyl)-L-alpha-glutamyl)-L-alpha-glutamyl)-O-sulfo-L-tyrosyl)- NH2-Asn-gly-asp-phe-glu-glu-ile-pro-glu-glu-(SO3)tyr-leu-cooh hirugen