... -Arginine Base, l-arginine, cas 74-79-3 Molecular Weight,174.20 CAS No:74-79-3 Characteristics:White crystalline powder. L-Arginine ... Base, l-arginine, cas 74-79-3Chemical NameL-2-Amino-5-guanidinopentanoic ... the good price , welcome to your enquiry . High quality L-Arginine