Product Name

L-Tryptophan feed grade

CAS No.

73-22-3

Molecular Formula

C₁₁H₁₂N₂O₂

Molecular weight

204.23

Structural Formula

Packing

10kg or 20kg per bag

Shelf Life

2Years,Preserve in well-closed containers and protected from light

Item

Standard

Appearance

White to light yellow crystal powder

Assay

(test by titration,on dry material)

≥98.0%

Specific optical rotation

-29.0°~ -32.8°

PH(1% solution)

5.0~7.0

Loss on drying

≤0.50%

Crude Ash

≤0.50%

Heavy metal(Pb)

≤20ppm

Arsenic

≤2ppm