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(D-丙氨酰2)-亮氨酸 脑啡肽-精氨酸
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Dalargin
Chemical Name | Dalargin (D-Ala2)-Leucine Enkephalin-Arg |
CAS Number | 81733-79-1 |
Molecular Formula | C35H51N9O8 |
Molecular Weight | 725.84 |
Molecular Structure |  |
Packing | 1mg, 5mg, 10mg, 50mg, 100mg, 1g or according to customer's detail requirement. |
Capacity | 1000g/Month |
Storage | In an air tight container, protected from light at temperature 2-8 °C. |
Application | Dalargin inhibits and retards oxidation reactions of natural or synthetic substances. They counteract the damaging effects of oxidation in animal tissues. |
SPECIFICATION
Items | Specification |
Appearance | White or off-white powder |
Solubility | Soluble in wate |
| HPLC | Meet the requirements |
Amino Acid Analysis | Amino Acid Limits |
Arg 0.90- 1.10 | |
Gly 0.90- 1.10 | |
Leu 0.90- 1.10 | |
Ala 0.90- 1.10 | |
Tyr 0.80- 1.20 | |
Phe 0.90- 1.10 | |
| No more than the traces of the other amino acid are present | |
| MS | 725.8 ± 1.0 |
| Related Substances | Unspecified impurity |
| For each impurity: ≤ 1.0% | |
| Total impurity: ≤ 2.0% | |
| Acetic Acid | ≤ 14.0% |
| Water | ≤ 5.0% |
Residual Solvent | Methanol≤ 3000ppm |
Acetonitrile≤ 410ppm | |
Triethylamine≤ 320ppm | |
| Assay | 97.0%-103.0% (anhydrous and acetic free substance) |
Standard | In-house |
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