(-)-asparagine (S)-2,4-diamino-4-oxobutanoic acid (S)-asparagine 2,4-diamino-4-oxobutanoic acid, (S)- 2-aminosuccinamic acid, L- 70-47-3 7006-34-0 ASN L-2,4-diamino-4-oxobutanoic acid L-asparagine L-asparatamine L-beta-asparagine agedoite alpha-aminosuccinamic acid altheine asparagine asparagine acid aspartic acid beta-amide butanoic acid, 2,4-diamino-4-oxo-, (S)-