OSI-420 free base
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
OSI-420 is the major metabolite of OSI-774(erlotinib) which is a small molecule, orally active, potent, and selective inhibitor of EGFR tyrosine kinase with an IC50 value of 2nM[1,2].
OSI-420 is the active metabolite of OSI-774(erlotinib) which selectively inhibits the EGFR tyrosine kinase and prevents autophosphorylation by competing with adenosine triphosphate (ATP) for its binding site on the intracellular domain of EGFR. In addition, erlotinib, is metabolized to produce ATP, has been found to be selective for EGFR and lead to the induction of apoptosis by inducing the disruption of mitochondrial effect on loss of mitochondrial membrane potential and release of cytocrome c [1, 2].
 Zhang W1, Siu LL, Moore MJ, Chen EX.Simultaneous determination of OSI-774 and its major metabolite OSI-420 in human plasma by using HPLC with UV detection. J Chromatogr B Analyt Technol Biomed Life Sci. 2005 Jan 5;814(1):143-7.
 Bonomi P. Erlotinib: a new therapeutic approach for non-small cell lung cancer.Expert Opin Investig Drugs. 2003 Aug;12(8):1395-401.
|Storage||Store at -20°C|
|Synonyms||OSI-420, Desmethyl Erlotinib, CP-473420|
|Solubility||Soluble in DMSO|
|Shipping Condition||Evaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.|
|General tips||For obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.|
|Description||OSI-420 is the active metabolite of Erlotinib (EGFR inhibitor with IC50 of 2 nM).|