精氨酸-天门冬氨酸   7675-83-4

Item

Standard

Analysis data

Appearance

White or almost crystalline                 powder

Conforms

Specific rotation[α]20/D

(C=8 in 6N HCl)

+25°to +27°

25.4°

Chloride (Cl)

Not more than 0.05%

<0.018%

Sulfate (SO4)

Not more than 0.03%

<0.015%

Heavy metal(Pb)

Not more than 20ppm

6ppm

Ammonium(NH4)

Not more than 0.02%

<0.02%

Loss on drying

Not more than 3.0%

0.35%

Residue on ignition(sulfated)

Not more than 0.1%

0.08%

Assay

98.5% to 101.0%

99.1%

PH

5.5 to 7.0

 6.6

Total Plate Count

<1000/g

Conforms

Yeast&Molds

<100/g

Conforms

Salmonella

Absent/10g

Conforms

E.Coli

Absent/10g

Not detected

S.aureus

Absent/10g

Conforms