OSI-420
- CAS NO.:183321-86-0
- Empirical Formula: C21H21N3O4
- Molecular Weight: 379.41
- MDL number: MFCD09841129
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-13 23:13:44
What is OSI-420?
Description
Desmethyl erlotinib is a metabolite of erlotinib . Erlotinib is a tyrosine kinase inhibitor which acts on the epidermal growth factor receptor (EGFR), inhibiting EGFR-associated kinase activity (IC50 = 2.5 μM). This inhibits tumor growth in human head and neck carcinoma HN5 tumor xenografts in mice with an ED50 value of 9 mg/kg. Erlotinib also suppresses cyclin-dependent kinase 2 (Cdk2) activity in breast cancer cells (IC50 = 4.6 μM) and JAK2 mutant JAK2V617F positive hematopoietic progenitor cells (IC50 = 5 μM), which is associated with polycythemia vera, idiopathic myelofibrosis, and essential thrombocythemia. Formulations containing erlotinib have been used to treat certain forms of cancer, including non-small cell lung cancer.
Chemical properties
Off-White Solid
The Uses of OSI-420
OSI-420 (Desmethyl Erlotinib,CP-473420) is an active metabolite of erlotinib which is an orally active EGFR tyrosin kinase inhibitor with IC50 of 2 and 20 nM for the inhibition of human EGFR and EGFR autophosphorylation in tumor cells.
The Uses of OSI-420
A metabolite of Erlotinib (E625000), an anti cancer agent.
What are the applications of Application
OSI-420, Free Base (Desmethyl Erlotinib) is a metabolite of Erlotinib
References
[1] 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.
[2] bonomi p. erlotinib: a new therapeutic approach for non-small cell lung cancer.expert opin investig drugs. 2003 aug;12(8):1395-401.
Properties of OSI-420
| Melting point: | 140-142°C |
| Density | 1.30 |
| storage temp. | -20°C Freezer |
| solubility | insoluble in H2O; insoluble in EtOH; ≥51 mg/mL in DMSO |
| form | A crystalline solid |
| color | White to off-white |
Safety information for OSI-420
Computed Descriptors for OSI-420
New Products
Cyclopropane-1,1-dicarboxylic acid Cefuroxime EP Impurity-A N-Nitroso hydroxy Cetrizine EP Impurity-A Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity Lantanoprost rc B Clidinium Bromide Impurity tert-Butyl (2S)-[1-amino-3-(4-iodophenyl)-1-oxopropan-2-yl]carbamate 4-amino-2-fluoro-N- methylbenzamide 5-Chloro-3- Methyl -1,3-2-benzoxazol-2(3H)-one N-(2-chloropyrimidin-4-yl)-N,2,3- trimethyl-2H- indazol 6-amine N-Boc-1,4-butanediamine 4-Bromo-2-fluoro-N-methylbenzamide valeronitrile 3-chlorobenzyl cyanide 3,4 Dimethoxy Benzylcyanide 3,4 Diethoxy Benzylcyanide 2-Chloro Benzylcyanide 3-Hydroxypropionitrile 5-azidovalericacid 6,6'-bis(difluoromethoxy)-2,2'-bis((3,4-dimethoxypyridin-2-yl)methylsulfinyl)-1H,1'H-5,5'-bibenzo[d]imidazole (1-((2'-(2-((1-((2'-(2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl)-2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methanol (1-((2'-(1-((1-((2'-(2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl)-1H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methanol (4-Methoxyphenyl) hydrazine HydrochlorideRelated products of tetrahydrofuran
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