Pexidartinib HCl

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

MedKoo CAT#: 207104

CAS#: 2040295-03-0 (HCl)

Description: Pexidartinib, also know as PLX-3397, is a CSF1R inhibitor with IC50 of 20 nM in development by Plexxikon for the treatment of tenosynovial giant cell tumors. It is in a phase 3 clinical trial for Pigmented Villonodular Synovitis (PVNS) or Giant Cell Tumor of the Tendon Sheath (GCT-TS).

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Pexidartinib HCl, purity > 98%, is in stock. The same day shipping after order received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 207104
Name: Pexidartinib HCl
CAS#: 2040295-03-0 (HCl)
Chemical Formula: C20H16Cl2F3N5
Exact Mass:
Molecular Weight: 454.2782
Elemental Analysis: C, 52.88; H, 3.55; Cl, 15.61; F, 12.55; N, 15.42

Related CAS #: 1029044-16-3 (free base)   2040295-03-0 (HCl)   2169310-71-6 (2HCl)    

Synonym: PLX3397; PLX-3397; PLX 3397; Pexidartinib; Pexidartinib HCl; Pexidartinib hydrochloride

IUPAC/Chemical Name: 5-((5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methyl)-N-((6-(trifluoromethyl)pyridin-3-yl)methyl)pyridin-2-amine hydrochloride


InChi Code: InChI=1S/C20H15ClF3N5.ClH/c21-15-6-16-14(10-28-19(16)29-11-15)5-12-2-4-18(26-7-12)27-9-13-1-3-17(25-8-13)20(22,23)24;/h1-4,6-8,10-11H,5,9H2,(H,26,27)(H,28,29);1H

SMILES Code: FC(C1=CC=C(CNC2=NC=C(CC3=CNC4=NC=C(Cl)C=C43)C=C2)C=N1)(F)F.[H]Cl

Technical Data

Solid powder

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

Certificate of Analysis:

Safety Data Sheet (MSDS):

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:
>3 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:


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7: Merry TL, Brooks AES, Masson SW, Adams SE, Jaiswal JK, Jamieson SMF, Shepherd PR. The CSF1 receptor inhibitor pexidartinib (PLX3397) reduces tissue macrophage levels without affecting glucose homeostasis in mice. Int J Obes (Lond). 2019 Mar 29. doi: 10.1038/s41366-019-0355-7. [Epub ahead of print] PubMed PMID: 30926949.

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