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

MedKoo CAT#: 205250

CAS#: 223132-37-4 (free base)

Description: Inolitazone, also known as Efatutazone, CS-7017, and RS5444, is an orally bioavailable PAPR-gamma inhibitor with potential antineoplastic activity. Inolitazone binds to and activates peroxisome proliferation-activated receptor gamma (PPAR-gamma), which may result in the induction of tumor cell differentiation and apoptosis, as well as a reduction in tumor cell proliferation. PPAR-gamma is a nuclear hormone receptor and ligand-activated transcription factor controlling gene expression involved in such cellular processes as differentiation, apoptosis, cell-cycle control, carcinogenesis, and inflammation. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus).

Chemical Structure

CAS# 223132-37-4 (free base)

Theoretical Analysis

MedKoo Cat#: 205250
Name: Inolitazone
CAS#: 223132-37-4 (free base)
Chemical Formula: C27H26N4O4S
Exact Mass: 502.16748
Molecular Weight: 502.58
Elemental Analysis: C, 64.52; H, 5.21; N, 11.15; O, 12.73; S, 6.38

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Related CAS #: 223132-37-4 (free base)   223132-38-5 (hydrochloride)  

Synonym: CS-7017, CS7017; CS 7017; RS5444; RS-5444; RS 5444; Efatutazone

IUPAC/Chemical Name: 5-(4-((6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1H-benzo[d]imidazol-2-yl)methoxy)benzyl)thiazolidine-2,4-dione


InChi Code: InChI=1S/C27H26N4O4S/c1-15-10-20(11-16(2)25(15)28)35-19-8-9-21-22(13-19)31(3)24(29-21)14-34-18-6-4-17(5-7-18)12-23-26(32)30-27(33)36-23/h4-11,13,23H,12,14,28H2,1-3H3,(H,30,32,33)


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

Preparing Stock Solutions

The following data is based on the product molecular weight 502.58 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

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1: Murakami H, Ono A, Takahashi T, Onozawa Y, Tsushima T, Yamazaki K, Jikoh T, Boku N, Yamamoto N. Phase I study of Efatutazone, an oral PPARγ agonist, in patients with metastatic solid tumors. Anticancer Res. 2014 Sep;34(9):5133-41. PubMed PMID: 25202104.

2: Serizawa M, Murakami H, Watanabe M, Takahashi T, Yamamoto N, Koh Y. Peroxisome proliferator-activated receptor γ agonist efatutazone impairs transforming growth factor β2-induced motility of epidermal growth factor receptor tyrosine kinase inhibitor-resistant lung cancer cells. Cancer Sci. 2014 Jun;105(6):683-9. doi: 10.1111/cas.12411. Epub 2014 May 10. PubMed PMID: 24698130.

3: Komatsu Y, Yoshino T, Yamazaki K, Yuki S, Machida N, Sasaki T, Hyodo I, Yachi Y, Onuma H, Ohtsu A. Phase 1 study of efatutazone, a novel oral peroxisome proliferator-activated receptor gamma agonist, in combination with FOLFIRI as second-line therapy in patients with metastatic colorectal cancer. Invest New Drugs. 2014 Jun;32(3):473-80. doi: 10.1007/s10637-013-0056-3. Epub 2013 Dec 15. PubMed PMID: 24337768; PubMed Central PMCID: PMC4045340.

4: Nakles RE, Kallakury BV, Furth PA. The PPARγ agonist efatutazone increases the spectrum of well-differentiated mammary cancer subtypes initiated by loss of full-length BRCA1 in association with TP53 haploinsufficiency. Am J Pathol. 2013 Jun;182(6):1976-85. doi: 10.1016/j.ajpath.2013.02.006. Epub 2013 May 8. PubMed PMID: 23664366; PubMed Central PMCID: PMC3668033.

5: Smallridge RC, Copland JA, Brose MS, Wadsworth JT, Houvras Y, Menefee ME, Bible KC, Shah MH, Gramza AW, Klopper JP, Marlow LA, Heckman MG, Von Roemeling R. Efatutazone, an oral PPAR-γ agonist, in combination with paclitaxel in anaplastic thyroid cancer: results of a multicenter phase 1 trial. J Clin Endocrinol Metab. 2013 Jun;98(6):2392-400. doi: 10.1210/jc.2013-1106. Epub 2013 Apr 15. PubMed PMID: 23589525; PubMed Central PMCID: PMC3667260.

6: Pishvaian MJ, Marshall JL, Wagner AJ, Hwang JJ, Malik S, Cotarla I, Deeken JF, He AR, Daniel H, Halim AB, Zahir H, Copigneaux C, Liu K, Beckman RA, Demetri GD. A phase 1 study of efatutazone, an oral peroxisome proliferator-activated receptor gamma agonist, administered to patients with advanced malignancies. Cancer. 2012 Nov 1;118(21):5403-13. doi: 10.1002/cncr.27526. Epub 2012 May 8. PubMed PMID: 22570147; PubMed Central PMCID: PMC3726261.


10.0mg / Not available

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