Certificate of Analysis

 

Product Name: Recombinant Human IGF-I (E.coli, 67AA)
Catalog Number: M21631
CAS Number: 68562-41-4

Physical and Chemical Properties
Formula: C331H512N94O101S7
Molecular Weight: 7645.68
Solubility: Reconstitute the lyophilized powder in distilled water to a concentration of 100μg/ml
Storage: Stored at ≤ -20°C, stable for one year after receipt
Analytical Data
QC Standard: >95%, Endotoxin < 0.5 EU/μg
H-NMR: Consistent with structure
Product Information
Description: Insulin-like growth factor I (IGF1) binds IGF-1R, IGF-2R, and the insulin receptor and plays a key role in cell cycle progression, cell proliferation and tumor progression. Measured in a serum-free cell proliferation assay using MCF‑7 human breast cancer cells. The ED50 for this effect is 20-100 ng/ml.
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.