324832

EGFR Inhibitor II, BIBX1382

The EGFR Inhibitor II, BIBX1382, also referenced under CAS 196612-93-8, controls the biological activity of EGFR. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

• Synonym(s): EGFR Inhibitor II, BIBX1382, N⁸-(3-Chloro-4-fluorophenyl)-N²-(1-methylpiperidin-4-yl)-pyrimido[5,4-d]pyrimidine-2,8-diamine, 2HCl, BIBX1382BS
• Empirical Formula (Hill Notation): C₁₈H₁₉ClFN₇ · 2HCl · 2H₂O
• CAS Number: 196612-93-8
• Molecular Weight: 496.79
• UNSPSC Code: 12352200
• NACRES: NA.77

Properties

• Quality Level: 100
• assay: ≥97% (HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated (hygroscopic); protect from light
• color: yellow
• solubility: water: 1 mg/mL; DMSO: 25 mg/mL
• shipped in: ambient
• storage temp.: 2-8°C
• InChI: 1S/C18H19ClFN7/c1-27-6-4-11(5-7-27)25-18-21-9-15-16(26-18)17(23-10-22-15)24-12-2-3-14(20)13(19)8-12/h2-3,8-11H,4-7H2,1H3,(H,21,25,26)(H,22,23,24)
• InChI key: FTFRZXFNZVCRSK-UHFFFAOYSA-N

Description

General description

A cell-permeable pyrimidopyrimidine compound that acts as a potent, reversible, ATP-competitive, and highly selective inhibitor of EGFR (ErbB-1, HER-1) both in cell-free enzymatic reactions (IC₅₀ = 3 nM) and in culture (IC₅₀ = 0.15, 1.82, and 3.2 µM in EGF-, HGF-, and FCS-dependent thymidine incorporation, respectively, in KB cells). It exhibits 1,000-fold greater selectivity over ErbB-2 (HER-2, neu; IC₅₀ = 3.4 µM) and shows little activity towards IGF1R, β-InsRK, HGFR, c-src, and VEGFR-2 even at concentrations as high as 10 µM. Its antitumor efficacy has also been demonstrated in a murine xenograft model in vivo (10 mg/kg, daily, p.o.).

A cell-permeable pyrimidopyrimidine compound that acts as a potent, reversible, ATP-competitive, and highly selective inhibitor of EGFR (ErbB-1, HER-1) both in cell-free enzymatic reactions (IC₅₀ = 3 nM) and in culture (IC₅₀ = 0.15, 1.82, and 3.2 µM in EGF-, HGF-, and FCS-dependent thymidine incorporation, respectively, in KB cells). It exhibits 1,000-fold greater selectivity over ErbB-2 (HER-2, neu; IC₅₀ = 3.4 µM) and shows little activity towards IGF1R, β-InsRK, HGFR, c-src, and VEGFR-2 even at concentrations as high as 10 µM. Its antitumor efficacy has also been demonstrated in a murine xenograft model in vivo (daily p.o. dose 10 mg/kg).

Biochem/physiol Actions

Cell permeable: yes

Primary Target
EGFR (ErbB-1, HER-1)

Product competes with ATP.

Reversible: yes

Target IC₅₀: 3 nM against EGFR (ErbB-1, HER-1) in cell-free enzymatic reactions; 0.15, 1.82, and 3.2 µM in EGF-, HGF-, and FCS-dependent thymidine incorporation, respectively, in KB cells

Warning

Toxicity: Irritant (B)

Other Notes

Solca, F.F., et al. 2004. J. Pharm. Exp. Ther.311, 502.
Egeblad, M., et al. 2001. Biochem. Biophys. Res. Commun.281, 25.
Nuijen, B., et al. 2000. Int. J. Pharm.194, 261.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable