Receptor Grade IGF-1 LR3 (1mg)

Description

Receptor Grade IGF-1 LR3 Peptide – Long R3 Insulin-Like Growth Factor-1

Molecular Formula: C₄₀₀H₆₂₅N₁₁₁O₁₁₅S₉
Molecular Weight: 9117.5 g/mol
Other Names: Long-(Arg3) IGF-1, LR3-IGF-1
Form: Lyophilized Powder
Purity: Receptor Grade (high purity for research applications)
Storage: -20°C, dry and protected from light
Use: Research and laboratory purposes only – not for human consumption

Introduction and Background

The discovery of growth hormone (somatotropin) in the mid-20th century marked a significant milestone in endocrinology. Early studies suggested that somatotropin might enhance sulfate and amino acid uptake in tissues, although the precise mechanisms were not fully understood. Subsequent research led to the identification of somatomedins, which were serum factors capable of promoting insulin-like activity in various tissues. These somatomedins were later classified as insulin-like growth factors (IGFs) due to their structural similarity and functional overlap with insulin.(1)

IGF-1, a 70-amino-acid peptide, plays a central role in regulating