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5 Kilogram |
Negotiable |
D(+)-Tryptophan Tryptophan D-Tryptophan
AJI92 standard
D-Tryptophan
Appearance |
White or off-white crystalline powder |
Specific optical rotation |
+30.0 ° ~+33.0° |
Heavy metals |
Not more than 10ppm |
Loss on drying |
Not more than 0.20% |
Residue on ignition |
Not more than 0.10% |
Assay |
98.0~102.0% |
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