Pyrotinib maleate

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

MedKoo CAT#: 206772

CAS#: 1397922-61-0 (maleate)

Description: Pyrotinib maleate is a salt of Pyrotinib. Pyrotinib also known as SHR-1258, is an orally bioavailable, dual kinase inhibitor of the epidermal growth factor receptor (EGFR or HER-1) and the human epidermal growth factor receptor 2 (ErbB2 or HER-2), with potential antineoplastic activity. Upon oral administration, pyrotinib binds to and inhibits both EGFR and HER2, which may result in the inhibition of tumor growth and angiogenesis, and tumor regression in EGFR/HER2-expressing tumor cells. EGFR and HER2 are receptor tyrosine kinases that are upregulated in various tumor cell types and play major roles in tumor cell proliferation and tumor vascularization.

Price and Availability




Pyrotinib maleate is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 206772
Name: Pyrotinib maleate
CAS#: 1397922-61-0 (maleate)
Chemical Formula: C36H35ClN6O7
Exact Mass:
Molecular Weight: 699.161
Elemental Analysis: C, 61.84; H, 5.05; Cl, 5.07; N, 12.02; O, 16.02

Related CAS #: 1269662-73-8 (free base)   1397922-61-0 (maleate)    

Synonym: Pyrotinib maleate; Pyrotinib; SHR-1258; SHR1258; SHR 1258.

IUPAC/Chemical Name: (R,E)-N-(4-((3-chloro-4-(pyridin-2-ylmethoxy)phenyl)amino)-3-cyano-7-ethoxyquinolin-6-yl)-3-(1-methylpyrrolidin-2-yl)acrylamide maleate


InChi Code: InChI=1S/C32H31ClN6O3.C4H4O4/c1-3-41-30-17-27-25(16-28(30)38-31(40)12-10-24-8-6-14-39(24)2)32(21(18-34)19-36-27)37-22-9-11-29(26(33)15-22)42-20-23-7-4-5-13-35-23;5-3(6)1-2-4(7)8/h4-5,7,9-13,15-17,19,24H,3,6,8,14,20H2,1-2H3,(H,36,37)(H,38,40);1-2H,(H,5,6)(H,7,8)/b12-10+;2-1-/t24-;/m1./s1

SMILES Code: O=C(NC1=C(OCC)C=C2N=CC(C#N)=C(NC3=CC=C(OCC4=NC=CC=C4)C(Cl)=C3)C2=C1)/C=C/[C@@H]5N(C)CCC5.O=C(O)/C=C\C(O)=O

Technical Data

Solid powder

>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).

Soluble in DMSO

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).

Harmonized System Code:

Additional Information

Related CAS#
1269662-73-8 (Pyrotinib free base)
1397922-61-0 (Pyrotinib maleate)


1: Zhu Y, Li L, Zhang G, Wan H, Yang C, Diao X, Chen X, Zhang L, Zhong D.
Metabolic characterization of pyrotinib in humans by ultra-performance liquid
chromatography/quadrupole time-of-flight mass spectrometry. J Chromatogr B Analyt
Technol Biomed Life Sci. 2016 Oct 15;1033-1034:117-27. doi:
10.1016/j.jchromb.2016.08.009. PubMed PMID: 27541626.