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CAS#: 670220-88-9

Description: Crenolanib is a n orally bioavailable small molecule, targeting the platelet-derived growth factor receptor (PDGFR), with potential antineoplastic activity. Crenolanib binds to and inhibits PDGFR, which may result in the inhibition of PDGFR-related signal transduction pathways, and, so, the inhibition of tumor angiogenesis and tumor cell proliferation.

Synonym: CP 868596; CP868596; CP-868596; ARO 002; RO-002; RO002; Crenolanib.

IUPAC/Chemical Name: 1-(2-(5-((3-methyloxetan-3-yl)methoxy)-1H-benzo[d]imidazol-1-yl)quinolin-8-yl)piperidin-4-amine.


Name: Crenolanib
CAS#: 670220-88-9
Chemical Formula: C26H29N5O2
Exact Mass: 443.23213
Molecular Weight: 443.54
Elemental Analysis: C, 70.41; H, 6.59; N, 15.79; O, 7.21


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, not in water
Shelf Life:
>5 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).


Crenolanib is an investigational new drug being developed by AROG Pharmaceuticals, LLC for the treatment of certain types of cancer. Crenolanib is a tyrosine kinase inhibitor that acts by specifically inhibiting the receptor tyrosine kinases PDGFRA and PDGFRB. Crenolanib is an orally bioavailable, selective small molecule inhibitor of the Platelet-derived growth factor receptor PDGFR) tyrosine kinase, inhibiting both PDGFRA and PDGFRB at picomolar concentrations.  Type III receptor tyrosine kinases (RTK), including c-KIT, PDGFRα and PDGFRβ, have been directly implicated in the pathogenesis of epithelial, mesenchymal, and hematological malignancies.[1] The PDGF/PDGFR pathway is the primary driver of oncogenesis in several malignancies including gastrointestinal stromal tumor (GIST),[2] both adult[3] and pediatric gliomas,[4] as well as a subset of Non-small-cell lung carcinoma (NSCLC).[5] These malignancies often respond to treatment with non-selective inhibitors of PDGFR like imatinib and sunitinib. Crenolanib is a 100-500-fold more potent inhibitor of PDGFRα and PDGFRβ than other commercially available TKIs. It is currently being developed as an antineoplastic agent in cancers. (source: Crenolanib ).


1: Michael M, Vlahovic G, Khamly K, Pierce KJ, Guo F, Olszanski AJ. Phase Ib study of CP-868,596, a PDGFR inhibitor, combined with docetaxel with or without axitinib, a VEGFR inhibitor. Br J Cancer. 2010 Nov 9;103(10):1554-61. Epub 2010 Oct 19. PubMed PMID: 20959830; PubMed Central PMCID: PMC2990584.

2: Lewis NL, Lewis LD, Eder JP, Reddy NJ, Guo F, Pierce KJ, Olszanski AJ, Cohen RB. Phase I study of the safety, tolerability, and pharmacokinetics of oral CP-868,596, a highly specific platelet-derived growth factor receptor tyrosine kinase inhibitor in patients with advanced cancers. J Clin Oncol. 2009 Nov 1;27(31):5262-9. Epub 2009 Sep 8. PubMed PMID: 19738123; PubMed Central PMCID: PMC2773478.

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