[gregp_]

Hello all,

An easy one for any one smarter than myself. Can someone please tell me if

L-Arginine Pyroglutamate

and

L-Arginine L-Pyroglutamate

are _exactly_ the same thing? If not, what is the difference?

Many thanks,

Greg.

[Kryolith]

Pyroglutamic acid is chiral. A dipeptide can contain its D- or its L-enantiomer. L-Arginine-L-pyroglutamate describes a specific structure out of four possible stereoisomers.