Gly-Gly-Phe-Gly-NH-CH2-O-CH2COOH

[Gly-Gly-Phe-Gly-NH-CH2-O-CH2COOH]

Powder: -20 degree C for 3 years | In solvent: -80 degree C for 1 year

[Gly-Gly-Phe-Gly-NH-CH2-O-CH2COOH]