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Eltrombopag

CAS No.
496775-61-2
Chemical Name:
Eltrombopag
Synonyms
Promacta;Eltrombopa;Eltrombopag [inn];CS-640;Ikuppa;Sb497115;Sb-497115;ltrombopag;Eltrombopag;Unii-S56D65xj9g
CBNumber:
CB71463423
Molecular Formula:
C25H22N4O4
Molecular Weight:
442.47
MDL Number:
MFCD20926253
MOL File:
496775-61-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-22 18:57:36
Product description Number Pack Size Price
Eltrombopag E1578 200MG $86
Eltrombopag E1578 1G $300
Eltrombopag ≥98% 13247 1mg $32
Eltrombopag ≥98% 13247 5mg $86
Eltrombopag ≥98% 13247 10mg $117
More product size

Eltrombopag Properties

Melting point 242-244°C
Boiling point 656.8±65.0 °C(Predicted)
Density 1.33
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Soluble in DMSO (up to 55 mg/ml) or in ethanol (up to 14 mg/ml).
pka -1.26±0.40(Predicted)
form solid
color Orange
Stability Stable for 2 years from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20° for up to 3 months.
InChI InChI=1S/C25H22N4O4/c1-14-10-11-19(12-15(14)2)29-24(31)22(16(3)28-29)27-26-21-9-5-8-20(23(21)30)17-6-4-7-18(13-17)25(32)33/h4-13,26,30H,1-3H3,(H,32,33)/b27-22-
InChIKey XDXWLKQMMKQXPV-QYQHSDTDSA-N
SMILES C1(C2=CC=CC(N/N=C3\C(=O)N(C4=CC=C(C)C(C)=C4)N=C\3C)=C2O)=CC=CC(C(O)=O)=C1
NCI Dictionary of Cancer Terms Promacta
FDA UNII S56D65XJ9G
NCI Drug Dictionary Promacta
ATC code B02BX05
UNSPSC Code 12352200
NACRES NA.77

Pharmacokinetic data

Protein binding >99.9%
Excreted unchanged in urine 0 (31% as metabolites)
Volume of distribution 8.72 Litres
Biological half-life 21-32 / -

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS07,GHS08,GHS09,GHS05
Signal word  Danger
Hazard statements  H318-H373-H410-H302
Precautionary statements  P273-P391-P501-P264-P270-P301+P312-P330-P501-P280-P305+P351+P338-P310-P260-P314-P501
WGK Germany  WGK 3
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Chronic 2
Eye Dam. 1
STOT RE 2
Hazardous Substances Data 496775-61-2(Hazardous Substances Data)
NFPA 704
0
3 0

Eltrombopag price More Price(36)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical E1578 Eltrombopag 496775-61-2 200MG $86 2026-03-19 Buy
TCI Chemical E1578 Eltrombopag 496775-61-2 1G $300 2026-03-19 Buy
Cayman Chemical 13247 Eltrombopag ≥98% 496775-61-2 1mg $32 2024-03-01 Buy
Cayman Chemical 13247 Eltrombopag ≥98% 496775-61-2 5mg $86 2024-03-01 Buy
Cayman Chemical 13247 Eltrombopag ≥98% 496775-61-2 10mg $117 2024-03-01 Buy
Product number Packaging Price Buy
E1578 200MG $86 Buy
E1578 1G $300 Buy
13247 1mg $32 Buy
13247 5mg $86 Buy
13247 10mg $117 Buy

Eltrombopag Chemical Properties,Uses,Production

Description

ITP is an autoimmune disease in which antiplatelet antibodies accelerate the destruction of platelets. In addition, platelet production can be impaired because the antiplatelet antibodies can also damage megakaryocytes. Although the thrombocytopenia of ITP can be severe, signs of bleeding are usually only minor.
Eltrombopag is an oral, small-molecule, nonpeptide TPO-receptor agonist. It initiates TPO-receptor signaling by interacting with the transmembrane domain of the receptor, thereby inducing proliferation and differentiation of cells in the megakaryocytic lineage. Eltrombopag is the second TPO-receptor agonist to reach the market behind romiplostim (Nplate), a recombinant fusion protein launched in 2008. Both drugs are specifically indicated for the treatment of thrombocytopenia in patients with chronic ITP who have had an insufficient response to corticosteroids, immunoglobulins, or splenectomy. Eltrombopag is supplied as the ethanolamine salt (also known as eltrombopag olamine).
The most common adverse reactions associated with eltrombopag were nausea, vomiting, mennorrhagia, myalgia, paresthesia and cataracts. Eltrombopag is derived in five synthetic steps starting from 2-bromo-6-nitroanisole, via Suzuki coupling reaction with 3-carboxyphenylboronic acid to a biphenyl intermediate, followed by cleavage of the methyl ether moiety with hydrobromic acid, and reduction of the nitro group to an amino group under catalytic hydrogenation conditions. Subsequently, the amino group is diazotized with sodium nitrite and hydrochloric acid, and the diazonium intermediate is condensed with 1-(3,4-dimethylphenyl)-3-methyl-2,5-dihydro-1H-pyrazol-5-one to produce eltrombopag.

Chemical Properties

Orange to Red Solid

Originator

Ligand Pharmaceuticals (US)

Uses

An agonist of the Thrombopoietin (Tpo) receptor, used as treatment for thrombocytopenia.

Uses

Eltrombopag (SB-497115-GR, Promacta, Revolade) is a small molecule agonist of the c-mpl (TpoR) receptor with an IC50 of 0.69 μM for the inhibition of hERG K+ channel tail current. In preclinical studies, the compound was shown to interact selectively with

Definition

ChEBI: A hydrazine in which each nitrogen atom is substituted, one by a 3'-carboxy-2-hydroxy[1,1'-biphenyl]-3-yl group and the other by a 1-(3,4-dimethylphenyl)-3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4-ylidene group. A small molecule agonist of the c-mpl (TpoR) receptor (the physiological target of the hormone thrombopoietin), it has been developed as a medication for conditions that lead to thrombocytopenia (abnormally low platelet counts).

brand name

Promacta

Clinical Use

Thrombopoetin receptor agonist:
Treatment of chronic immune idiopathic thrombocytopenic purpura (ITP)
Chronic hepatitis C associated thrombocytopenia (HCV)
Severe aplastic anaemia

Synthesis

The synthesis of Eltrombopag is as follows:
At room temperature, add 8.02g (20.0mmol) compound of formula V, 3.98g (24.0mmol) 3-carboxyphenylboronic acid, 8.48g (80.0mmol) sodium carbonate, 1.46g (2.0mmol) PdCl2dppf into a 250mL three-necked flask, 80mL ethanol, 65mL water, nitrogen protection, heated to 80, reacted for 10h, cooled to room temperature, added 60mL water, filtered, the filtrate was adjusted to pH 1-2 with 2M hydrochloric acid, a red solid was precipitated, filtered, and the filter cake was ethanol/water ( v/v=1:1, 40mL) beating, filtering, and drying to obtain 7.58g, the yield is 85.8%, and the purity is 99.40%.
synthesis of Eltrombopag.png

Drug interactions

Potentially hazardous interactions with other drugs
Ciclosporin: concentration of eltrombopag reduced.
Statins: increased rosuvastatin concentration, may need to reduce rosuvastatin dose.

Metabolism

Mainly hepatically metabolised through cleavage, oxidation by cytochrome P450 isoenzymes CYP1A2 and CYP 2C8 and conjugation with glucuronic acid, glutathione, or cysteine.
Approximately 31% of a dose is eliminated in the urine as metabolites, and about 59% in the faeces (20% unchanged).

References

[1] CHENGYING XIE. Pharmacological characterization of hetrombopag, a novel orally active human thrombopoietin receptor agonist[J]. JOURNAL OF CELLULAR AND MOLECULAR MEDICINE, 2018, 22 11: 5367-5377. DOI:10.1111/jcmm.13809
[2] CONNIE L. ERICKSON-MILLER. Preclinical Activity of Eltrombopag (SB-497115), an Oral, Nonpeptide Thrombopoietin Receptor Agonist†‡§[J]. STEM CELLS, 2009, 27 2: 424-430. DOI:10.1634/stemcells.2008-0366
[3] LUIGI J ALVARADO. Eltrombopag maintains human hematopoietic stem and progenitor cells under inflammatory conditions mediated by IFN-γ.[J]. Blood, 2019, 133 19: 2043-2055. DOI:10.1182/blood-2018-11-884486
[4] KACEY L. GUENTHER . Eltrombopag promotes DNA repair in human hematopoietic stem and progenitor cells[J]. Experimental hematology, 2019, 73: Pages 1-6.e6. DOI:10.1016/j.exphem.2019.03.002
[5] EVANGELIA VLACHODIMITROPOULOU. Eltrombopag: a powerful chelator of cellular or extracellular iron(III) alone or combined with a second chelator.[J]. Blood, 2017, 130 17: 1923-1933. DOI:10.1182/blood-2016-10-740241
[6] YUN-RUEI KAO. Thrombopoietin receptor–independent stimulation of hematopoietic stem cells by eltrombopag[J]. Science Translational Medicine, 2018, 10 458. DOI:10.1126/scitranslmed.aas9563

Eltrombopag Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 328)Suppliers
Supplier Tel Email Country ProdList Advantage
AFINE CHEMICALS LIMITED
+86-0571-85134551 sales@afinechem.com China 15079 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615350571055 Sibel@chuanghaibio.com China 8738 58
shandong perfect biotechnology co.ltd
+86-53169958659 +86-13153181156 sales@sdperfect.com China 294 58
Henan Bao Enluo International TradeCo.,LTD
+86-17331933971 deasea125996@gmail.com China 2472 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651 admin@zlchemi.com China 3692 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718; +8613336195806 sales@capot.com China 29640 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21592 55
Nanjing ChemLin Chemical Industry Co., Ltd.
025-83697070 product@chemlin.com.cn CHINA 3009 60
Shanghai Yingrui Biopharma Co., Ltd.
+86-21-33585366 - 03@ sales03@shyrchem.com CHINA 738 60
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 33024 60

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  • Apr 16,2025

View Lastest Price from Eltrombopag manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Eltrombopag  pictures 2026-04-23 Eltrombopag
496775-61-2
US $0.00 / Kg/Bag 2Kg/Bag 99% up, High Density 20 tons Sinoway Industrial co., ltd.
Eltrombopag pictures 2026-04-22 Eltrombopag
496775-61-2
US $40.00-98.00 / mg 99.73% 10g TargetMol Chemicals Inc.
Eltrombopag  pictures 2026-03-27 Eltrombopag
496775-61-2
US $0.00 / g 1g 98% HPLC 100kg shandong perfect biotechnology co.ltd
  • Eltrombopag  pictures
  • Eltrombopag
    496775-61-2
  • US $0.00 / Kg/Bag
  • 99% up, High Density
  • Sinoway Industrial co., ltd.
  • Eltrombopag pictures
  • Eltrombopag
    496775-61-2
  • US $40.00-98.00 / mg
  • 99.73%
  • TargetMol Chemicals Inc.
  • Eltrombopag  pictures
  • Eltrombopag
    496775-61-2
  • US $0.00 / g
  • 98% HPLC
  • shandong perfect biotechnology co.ltd

Eltrombopag Spectrum

(1,1'-Biphenyl)-3-carboxylic acid, 3'-((2Z)-(1-(3,4-dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene)hydrazino)-2'-hydroxy- Eltrombopag [inn] Sb497115 Sb-497115 Unii-S56D65xj9g (E)-3\'-(2-(1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1H-pyrazol-4(5H)-ylidene)hydrazinyl)-2\'-hydroxybiphenyl-3-carboxylic acid Eltrombopag 3'-[2-[(2Z)-1-(3,4-Dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazinyl]-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid 3-(5-{2-[2-(3,4-diMethylphenyl)-5-Methyl-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]hydrazin-1-ylidene}-6-oxocyclohexa-1,3-dien-1-yl)benzoic acid EltroMbopag (SB-497115-GR) (Z)-3'-(2-(1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1H-pyrazol-4(5H)-ylidene)hydrazinyl)-2'-hydroxy- [1,1'-Biphenyl]-3-carboxylic acid, 3'-[2-[(2Z)-1-(3,4-dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazinyl]-2'-hydroxy- CS-640 3'-[2-[(2Z)-1-(3,4-Dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazinyl]-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid Eltrombopag Eltrombopag 3'-[2-[(2Z)-1-(3,4-Dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazinyl]-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid Eltrombopag Acid (E)-3'-(2-(1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1H-pyrazol-4(5H)-ylidene)hydrazinyl)-2'-hydro (Z)-3'-(2-(1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1H-pyrazol-4(5H)-ylidene)hydrazinyl)-2'-hydro Eltrombopag Free Base ltrombopag [1,1'-Biphenyl]-3-carboxylic acid, 3'-[(2Z)-2-[1-(3,4-dimethylphenyl)-1,5-dihydro-3-methyl-5-oxo-4H-pyrazol-4-ylidene]hydrazinyl]-2'-hydroxy- Eltrombopag (10mM in DMSO) Eltrombopag (SB-497115) Eltrombopa Eltrombopag 13C4Q: What is Eltrombopag 13C4 Q: What is the CAS Number of Eltrombopag 13C4 Q: What is the storage condition of Eltrombopag 13C4 Q: What are the applications of Eltrombopag 13C4 Eltrombopag free acid Ikuppa (Z)-3'-(2-(1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1H-pyrazol-4(5H)-ylidene)hydrazinyl)-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic acid 3'-{(2Z)-2-[1-(3,4-dimethylphenyl)-3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4-ylidene] hydrazino}-2'-hydroxy-3-biphenylcarboxylic acid Eltrombopag - Bio-X ? 3-[3-[[2-(3,4-dimethylphenyl)-5-methyl-3-oxo-1H-pyrazol-4-yl]diazenyl]-2-hydroxyphenyl]benzoic acid Promacta 496775-61-2 496755-61-2 SB-497115-GR, Revolade, Promacta Agonist Aromatics Heterocycles Intermediates & Fine Chemicals Pharmaceuticals Inhibitors API