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Lapatinib (GW-572016, Tykerb, Tyverb)

This product is for research use only, not for human use. We do not sell to patients.

Lapatinib (GW-572016, Tykerb, Tyverb)
For small sizes, please check our retail website as below: www.invivochem.com
Size Price Stock
5g$450In Stock
10g$750In Stock
20g$1125In Stock

Cat #: V0540 CAS #: 231277-92-2 Purity ≥ 98%

Description: Lapatinib (formerly GW572016, trade names Tykerb & Tyverb), usually used in the Ditosylate form, is a potent, orally bioavailable dual EGFR/ErbB2 inhibitor with potential anticancer activity.

References: Rusnak DW, et al. The effects of the novel, reversible epidermal growth factor receptor/ErbB-2 tyrosine kinase inhibitor, GW2016, on the growth of human normal and tumor-derived cell lines in vitro and in vivo. Mol Cancer Ther. 2001 Dec;1(2):85-94

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Molecular Weight (MW)581.06
Molecular FormulaC29H26ClFN4O4S
CAS No.231277-92-2
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: 100 mg/mL (108.1 mM)r
Water: <1 mg/mLr
Ethanol: <1 mg/mL
Solubility In Vivo2% DMSO+30% PEG 300+5% Tween 80+ddH2O: 10 mg/mL
SMILES CodeO=S(CCNCC1=CC=C(C2=CC3=C(NC4=CC=C(OCC5=CC=CC(F)=C5)C(Cl)=C4)N=CN=C3C=C2)O1)(C)=O
SynonymsLapatinib; Lapatinib ditosylate; GW2016; gw572016; gw 572016;GW-2016; GW 2016; GW-572016; GSK572016; GSK 572016; gw-572016; Trade name: Tykerb
ProtocolIn VitroLapatinib (GW2016; 1-10 µM; 72 hours; HN5 cells) treatment results in induces G1 arrest. Lapatinib (GW2016; 72 hours; HN5, A-43, BT474, N87, and CaLu-3 cells) treatment has a selective inhibition of the proliferation of human tumor cell lines. Lapatinib (GW2016; 0.03-10 µM; 6 hours; BT474 and HN5 cells) treatment inhibits receptor autophosphorylation of EGFR and ErbB-2 in a dose-responsive manner. Phosphorylation of serine 473 of AKT was inhibited by GW2016 in a dose-dependent manner.
In VivoLapatinib (GW2016; 30-100 mg/kg; oral administration; twice daily; for 21 days; CD-1 nude female mice) treatment inhibits tumor xenograft growth of the HN5 cells in a dose-responsive manner at 30 and 100 mg/kg, with complete inhibition of tumor growth at the higher dose.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM1.7210 mL8.6050 mL17.2099 mL34.4199 mL
5mM0.3442 mL1.7210 mL3.4420 mL6.8840 mL
10mM0.1721 mL0.8605 mL1.7210 mL3.4420 mL
20mM0.0860 mL0.4302 mL0.8605 mL1.7210 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
Mass
=
Concentration
×
Volume
×
Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

Concentration(start)
C1
×
Volume(start)
V1
=
Concentration(final)
C2
×
Volume(final)
V2
Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
  • (2) Be sure to add the solvent(s) in order.