L- glutamine is the most abundant amino acid found in human muscle and plasma. Over 60% of the free-floating amino acid pool in skeletal muscle cells is made up of L glutamine. It is also a primary nitrogen donor, meaning that it moves the nitrogen around in the body to where it is needed. Maintaining a positive nitrogen balance is absolutely necessary for muscle building.

Specifications:

L-Glutamine 
1. cas: 56-85-9 
2.Assay: 98.5-101.5% 
2. Used in food and medicine