D-组氨酸351-50-8-YIN荡护士挨脔日常H苏桃视频メイリン モデルコレクション メイ_国产黄色福利

Item

Standard

Analysis data

Appearance

White to off-white  powder

conforms

Specific rotation[α]20/D

(C=1 inH2O)

+38°+2°

38.1°

State of solution

(Transmittance)

Notless than 98.0%

98.5%

Chloride (Cl)

Not more than 0.020%

0.008%

Sulfate(SO4)

Not more than 0.020%

0.005%

Ammonium (NH4)

Not more than 0.020%

<0.02%

Heavy metal(Pb)

Not more than 10ppm

<10ppm

Loss on drying

Not more than 0.20%

0.18%

Residue onignition(sulfated)

Not more than 0.10%

0.06%

Assay

Notless than 99%

99.2%