In 1960, Professor S. Cohen of the School of Medicine at Vanderbit University in the United States discovered EGF epidermal growth factorwhen he separated and purified NGF.
Epidermai GF, also known as Humanoligopeptide-1, is an important growth factor. It exists in tissues and body fluids and is a type of growth factor secreted by humans.
Its structure has three disulfide bonds and is a polypeptide containing 53 amino acid residues.
EGF has excellent biological activity and function and is a medical ingredient. If abused, it can lead to excessive tissue growth.
| Tests | Specifications | Results |
| Description | White to off-white crystalline powder | Off-white crystalline powder |
| Purity | 98.0% , On anhydrous basis | 98.95% |
| Identification | Infrared spectrum should be consistent with the reference map | Complies |
| The main peak of retention time of test sample solution and the solution of main peak of retention time | Complies | |
| Related compounds | Any single impurity ≤0.5% | Max single impurity 0.32% |
| Total impurities ≤1.0% | 0.75% | |
| Loss on drying | ≤1.0% | 0.26% |
| Residual | ≤0.2% | 0.05% |
| Heavy metal | ≤20 ppm | ＜20ppm |
| Conclusion: Conforms to in-house Standards | ||
The structure and mechanism of action of epidermal growth factor:
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