IGF-1 LR3

Long R3 insulin-like growth factor 1, a recombinant analog of human IGF-1. Supplied for laboratory research use only.

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0.1 mg1 mg

Vial quantity

1 vial$45.00 / vial$45.003 vials$42.75 / vial$128.255 vials$40.50 / vial$202.5010 vials$38.25 / vial$382.50

Or enter a custom quantity

Maximum 10 per order for each size.

1 vial total$45.00

Size: 0.1 mg

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Third-party tested
Made in USA

Research overview

About this compound

IGF-1 LR3 (Long R3 IGF-1) is a recombinant analog of human insulin-like growth factor 1. It has arginine in place of glutamic acid at position 3 and a 13-amino-acid extension at the N-terminus, 83 amino acids in total.

How it is used in research

These changes greatly reduce its binding to IGF-binding proteins, and it is widely used as a growth-factor supplement in serum-free mammalian cell culture.

Analytical characterization

Synthetic peptides are usually characterized by reversed-phase high-performance liquid chromatography (HPLC), which reports purity as the share of the main peak, and by mass spectrometry, which confirms that the measured molecular mass matches the expected sequence. Results for a specific lot appear under Lab results once they have been posted.