N-Acetyl-DL-Tryptophan N-Acetyl-DL-Trp DL-Trp
We are the biggest manufacturer of this product in China.
The purity is more than 99.5%
Our product can conforms to the EP8.0 grade
pharmaceutical intermediate; culture medium
Appearance |
White to off-white Powder |
Identification by IR |
Conforms To Reference |
Optical Rotation[α]20/D |
-0.1° to +0.1° |
Color and clarity |
Solution is clear and not intensely colored reference solution |
Solubility (1% in 4% NaOH) |
Soluble |
In water |
Slightly soluble |
In 96% ethanol |
Soluble |
Residue on ignition |
≤0.5% |
Heavy metal(Pb) |
≤10ppm |
Loss on drying |
≤0.5% |
Iron(Fe) |
≤10ppm |
Total impurities |
≤0.5% |
Ammonia |
≤200ppm |
Non-animal origin |
To pass |
Assay |
≥99.0% |
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