www.亚洲91|日韩免费黄|在线看日韩av|亚洲无人禁区,最新天堂中文在线,2019日韩中文字幕,影音先锋美女

The molecular weight of the peptide is less than 500 Dalton

Physical and chemical properties

Water solubility: the solubility is more than 90%, the water solution is clear and transparent, pH 4.5 ± 0.3, there is a trace of white particle precipitation, which is insoluble peptide substance.

Stability: it is stable in acid, alkali and high temperature, and can withstand heat resistance test at 100 ℃ for 30min or 121 ℃ for 20min in the range of ph2-10.

For more details about this product, please call our customer service!