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Product name: Dalargin
CAS: 81733-79-1
ITEMS | SPECIFICATION |
Appearance | White or off-white powder |
Soluble in water | |
HPLC | The principal peak in the chromatogram obtained with the test solution is similar in retention time to principal peak in the chromatogram obtained with the reference solution |
Amino acid analysis | Arg 0.9-1.1 |
Gly 0.9-1.1 | |
Leu 0.9-1.1 | |
Ala 0.9-1.0 | |
Tyr 0.9-1.1 | |
Phe 0.9-1.1 | |
No more than the traces of the other amino acid are present | |
MS | 725.8±1.0 |
Related Substances | Unspecified impurity |
For each impurity: NMT 1.0% | |
Total impurity: NMT2.0% | |
Acetic acid | NMT 14.0% |
Water | NMT 5.0% |
Baceterial endotoxins | Less than 16.7IU/mg |
Residual solvent | |
Methanol | NMT 3000ppm |
Acetonitrile | NMT 410ppm |
Triethylamine | NMT 320ppm |
Assay | 97.0%-103.0% |
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