Peptide Name
IGF-LR3 (Insulin-Like Growth Factor-1 Long Arg³)
Peptide Class
Synthetic growth factor analog; IGF-1–derived peptide
Amino Acid Sequence
IGF-1 analog with Arg substitution at position 3 and an N-terminal extension (“Long R³”)
Exact amino-acid sequence is provided on the lot-specific COA
Molecular Formula
Reported on COA
(elemental composition depends on exact sequence length and counter-ion form)
Molecular Weight
~9.1 kDa
(exact molecular weight confirmed by MS and reported on COA)
Peptide Type
Linear polypeptide; IGF-1 analog with defined sequence modifications
Peptide Type
Linear peptide composed of standard L-amino acids, incorporating a single arginine substitution and an N-terminal extension relative to native IGF-1; contains intramolecular disulfide bonds characteristic of the IGF family.
Solubility
Generally soluble in water and common aqueous laboratory buffers; solubility may vary withpH, ionic strength, and concentration.
Stability Characteristics
Lyophilized form: Store dry, protected from light and moisture, at−20 °C or below for long-termstability.
Reconstituted solutions: Prepare under sterile conditions; store in aliquots at cold temperatures and minimize repeated freeze–thaw cycles. Stability is buffer- and pH-dependent.
Source Classification
Synthetic (recombinant or solid-phase peptide synthesis–derived)
Purity Specification
≥98% (HPLC-verified)
Identity confirmed by mass spectrometry
Batch-specific Certificate of Analysis (COA) available
