H-Ala-Ala-OH (L-Alanyl-L-alanine; Ala-Ala)  (Synonyms: L-Alanyl-L-alanine; Ala-Ala)

H-Ala-Ala-OH (L-Alanyl-L-alanine; Ala-Ala) is a nonpolar dipeptide that is absorbed by human intestinal Caco-2 cells. The transport of alanine (Ala), like proton/amino acid symport, can lead to cytoplasmic acidification^[1].

160.17

C₆H₁₂N₂O₃

1948-31-8

Solid

White to off-white

C[C@@H](C(O)=O)NC([C@H](C)N)=O

Room temperature in continental US; may vary elsewhere.

4°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

• [1]. Thwaites D T, McEwan G T A, Brown C D A, et al. L-alanine absorption in human intestinal Caco-2 cells driven by the proton electrochemical gradient[J]. The Journal of membrane biology, 1994, 140: 143-151.