(2S)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid (2S)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]-5-guanidino-pentanoic acid (2S)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)-1-oxopropyl]amino]-5-guanidinopentanoic acid (2S)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]-5-guanidino-valeric acid 70904-56-2 N(2)-L-tyrosyl-L-arginine CHEBI:17537 C02993 Kyotorphin L-Tyrosyl-L-arginine NCGC00163207-01 Arginine, N2-tyrosyl- Kiotorphin L-Araginine, L-tyrosyl- L-Arginine, N2-L-tyrosyl- Tyr-arg