免费国产美女视频永久免费_午夜在线成人毛片_日韩精品亚洲成人在线中文字幕_黄色一级片大美女_黄色网站视频日韩_国产日韩欧美福利二区_亚洲91麻豆视频_国产成熟女人性满足视频_国产精品久久久精品爽_先锋资源亚洲有码中文字幕

(S)-2-Amino-3-hydroxypropanoic acid

Structure Formula：

Molecular Formula：

C3H7NO3

Molecular Weight：

105.09

Cas No：

[56-45-1]

Characteristics：

White crystalline powder

Quality Standards：

AJI97

Appearance

White crystalline powder

Assay, % (on dry matter)

99.0~101.0

Specific optical rotation

+14.4o~+15.5o

Transmittance,%

≥98.0

pH value

5.2~6.2

Loss on drying, %

≤0.2

Heavy metals, %

≤0.001

Residue on ignition, %

≤0.1

Chloride,%

≤0.02

Sulfate,%

≤0.02

Iron, %

≤0.001

Arsenic, %

≤0.0001

Ammonium (as NH+4), %

≤0.02

Other amino acids

Not detd.

Package and Transport：

　　The inner packed with two layer polyethylene plastic bags; the outer packed with the paper board barrel. Net weight 25kg.

        Handle with care. Protect the product from sunshine or rain. Do not transport with poisonous or harmful goods. This product belongs to the non-dangerous product category and can be transported as a general chemical product.

Storage：

　　Store in dry, clear, shady and place. The expiry date is for two years.