(S)–2–Amino–5–(((R)–1–((carboxymethyl)amino)–1–oxo–3–sulfopropan–2–yl)amino)–5–oxopentanoic acid

(S)–2–Amino–5–(((R)–1–((carboxymethyl)amino)–1–oxo–3–sulfopropan–2–yl)amino)–5–oxopentanoic acid