WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 201470

CAS#: 698387-09-6 (free base)

Description: Neratinib, also known as HKI-272 or PB272, is an orally available, irreversible inhibitor of the HER-2 receptor tyrosine kinase with potential antineoplastic activity. Neratinib binds to the HER-2 receptor irreversibly, thereby reducing autophosphorylation in cells, apparently by targeting a cysteine residue in the ATP-binding pocket of the receptor.

Chemical Structure

CAS# 698387-09-6 (free base)

Theoretical Analysis

MedKoo Cat#: 201470
Name: Neratinib
CAS#: 698387-09-6 (free base)
Chemical Formula: C30H29ClN6O3
Exact Mass: 556.19897
Molecular Weight: 557.04
Elemental Analysis: C, 64.68; H, 5.25; Cl, 6.36; N, 15.09; O, 8.62

Price and Availability

Size Price Availability Quantity
100.0mg USD 150.0 Same day
200.0mg USD 250.0 Same day
500.0mg USD 350.0 Same day
1.0g USD 450.0 Same day
2.0g USD 750.0 Same day
5.0g USD 1250.0 Same day
10.0g USD 1950.0 Same day
20.0g USD 3250.0 Same day
50.0g USD 4650.0 2 Weeks
Click to view more sizes and prices
Bulk inquiry

Related CAS #: 698387-09-6 (free base)   915942-22-2 (maleate)    

Synonym: HKI272; HKI 272; HKI-272; PB272; PB 272; PB-272; Neratinib; Nerlynx

IUPAC/Chemical Name: (2E)-N-[4-[[3-chloro-4-[(pyridin-2-yl)methoxy]phenyl]amino]-3-cyano-7-ethoxyquinolin-6-yl]-4-(dimethylamino)but-2-enamide


InChi Code: InChI=1S/C30H29ClN6O3/c1-4-39-28-16-25-23(15-26(28)36-29(38)9-7-13-37(2)3)30(20(17-32)18-34-25)35-21-10-11-27(24(31)14-21)40-19-22-8-5-6-12-33-22/h5-12,14-16,18H,4,13,19H2,1-3H3,(H,34,35)(H,36,38)/b9-7+


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 2.0 3.6

Preparing Stock Solutions

The following data is based on the product molecular weight 557.04 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

1: Xuhong JC, Qi XW, Zhang Y, Jiang J. Mechanism, safety and efficacy of three tyrosine kinase inhibitors lapatinib, neratinib and pyrotinib in HER2-positive breast cancer. Am J Cancer Res. 2019 Oct 1;9(10):2103-2119. eCollection 2019. Review. PubMed PMID: 31720077; PubMed Central PMCID: PMC6834479.

2: LiverTox: Clinical and Research Information on Drug-Induced Liver Injury [Internet]. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases; 2012-. Available from PubMed PMID: 31644242.

3: Booth LA, Roberts JL, Dent P. The role of cell signaling in the crosstalk between autophagy and apoptosis in the regulation of tumor cell survival in response to sorafenib and neratinib. Semin Cancer Biol. 2019 Oct 20. pii: S1044-579X(19)30024-0. doi: 10.1016/j.semcancer.2019.10.013. [Epub ahead of print] Review. PubMed PMID: 31644944.

4: Miles J, White Y. Neratinib for the Treatment of Early-Stage HER2-Positive Breast Cancer. J Adv Pract Oncol. 2018 Nov-Dec;9(7):750-754. Epub 2018 Nov 1. Review. PubMed PMID: 31249722; PubMed Central PMCID: PMC6570523.

5: Collins DM, Conlon NT, Kannan S, Verma CS, Eli LD, Lalani AS, Crown J. Preclinical Characteristics of the Irreversible Pan-HER Kinase Inhibitor Neratinib Compared with Lapatinib: Implications for the Treatment of HER2-Positive and HER2-Mutated Breast Cancer. Cancers (Basel). 2019 May 28;11(6). pii: E737. doi: 10.3390/cancers11060737. Review. PubMed PMID: 31141894; PubMed Central PMCID: PMC6628314.

6: Deeks ED. Neratinib: First Global Approval. Drugs. 2017 Oct;77(15):1695-1704. doi: 10.1007/s40265-017-0811-4. Review. PubMed PMID: 28884417.

7: Kourie HR, El Rassy E, Clatot F, de Azambuja E, Lambertini M. Emerging treatments for HER2-positive early-stage breast cancer: focus on neratinib. Onco Targets Ther. 2017 Jul 10;10:3363-3372. doi: 10.2147/OTT.S122397. eCollection 2017. Review. PubMed PMID: 28744140; PubMed Central PMCID: PMC5513878.

8: Echavarria I, López-Tarruella S, Márquez-Rodas I, Jerez Y, Martin M. Neratinib for the treatment of HER2-positive early stage breast cancer. Expert Rev Anticancer Ther. 2017 Aug;17(8):669-679. doi: 10.1080/14737140.2017.1338954. Epub 2017 Jun 26. Review. PubMed PMID: 28649882.

9: Chan A. Neratinib in HER-2-positive breast cancer: results to date and clinical usefulness. Ther Adv Med Oncol. 2016 Sep;8(5):339-50. doi: 10.1177/1758834016656494. Epub 2016 Jul 10. Review. PubMed PMID: 27583026; PubMed Central PMCID: PMC4981294.

10: Tiwari SR, Mishra P, Abraham J. Neratinib, A Novel HER2-Targeted Tyrosine Kinase Inhibitor. Clin Breast Cancer. 2016 Oct;16(5):344-348. doi: 10.1016/j.clbc.2016.05.016. Epub 2016 May 29. Review. PubMed PMID: 27405796.

11: Kourie HR, Chaix M, Gombos A, Aftimos P, Awada A. Pharmacodynamics, pharmacokinetics and clinical efficacy of neratinib in HER2-positive breast cancer and breast cancer with HER2 mutations. Expert Opin Drug Metab Toxicol. 2016 Aug;12(8):947-57. doi: 10.1080/17425255.2016.1198317. Epub 2016 Jun 27. Review. PubMed PMID: 27284682.

12: Segovia-Mendoza M, González-González ME, Barrera D, Díaz L, García-Becerra R. Efficacy and mechanism of action of the tyrosine kinase inhibitors gefitinib, lapatinib and neratinib in the treatment of HER2-positive breast cancer: preclinical and clinical evidence. Am J Cancer Res. 2015 Aug 15;5(9):2531-61. eCollection 2015. Review. PubMed PMID: 26609467; PubMed Central PMCID: PMC4633889.

13: Feldinger K, Kong A. Profile of neratinib and its potential in the treatment of breast cancer. Breast Cancer (Dove Med Press). 2015 Jun 9;7:147-62. doi: 10.2147/BCTT.S54414. eCollection 2015. Review. PubMed PMID: 26089701; PubMed Central PMCID: PMC4467661.

14: López-Tarruella S, Jerez Y, Márquez-Rodas I, Martín M. Neratinib (HKI-272) in the treatment of breast cancer. Future Oncol. 2012 Jun;8(6):671-81. doi: 10.2217/fon.12.66. Review. PubMed PMID: 22764764.

15: Bose P, Ozer H. Neratinib: an oral, irreversible dual EGFR/HER2 inhibitor for breast and non-small cell lung cancer. Expert Opin Investig Drugs. 2009 Nov;18(11):1735-51. doi: 10.1517/13543780903305428. Review. PubMed PMID: 19780706.


100.0mg / USD 150.0

Additional Information

HKI-272 is a potent inhibitor of HER-2 and is highly active against HER-2-overexpressing human breast cancer cell lines in vitro. It also inhibits the epidermal growth factor receptor (EGFR) kinase and the proliferation of EGFR-dependent cells. HKI-272 reduces HER-2 receptor autophosphorylation in cells at doses consistent with inhibition of cell proliferation and functions as an irreversible binding inhibitor, most likely by targeting a cysteine residue in the ATP-binding pocket of the receptor. In agreement with the predicted effects of HER-2 inactivation, HKI-272 treatment of cells results in inhibition of downstream signal transduction events and cell cycle regulatory pathways.