2.7.2.8 1.3 - N-acetyl-L-glutamate 2.7.2.8 1.7 - N-acetyl-L-glutamate 2.7.2.8 13 - N-acetyl-L-glutamate 2.7.2.8 145 - N-acetyl-L-glutamate 2.7.2.8 220 - N-acetyl-L-glutamate