Vonoprazan Fumarate
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MedKoo CAT#: 504150

CAS#: 1260141-27-2 (fumarate)

Description: Vonoprazan Fumarate, also known as TAK438, is a new medicine for treating acid-related diseases with a novel mechanism of action called potassium-competitive acid blockers (P-CABs) which competitively inhibits the binding of potassium ions to H+,K+-ATPase (also known as the proton pump) in the final step of gastric acid secretion in gastric parietal cells. TAKECAB provides a strong and sustained acid secretion inhibitory effect.


Chemical Structure

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Vonoprazan Fumarate
CAS# 1260141-27-2 (fumarate)

Theoretical Analysis

MedKoo Cat#: 504150
Name: Vonoprazan Fumarate
CAS#: 1260141-27-2 (fumarate)
Chemical Formula: C21H20FN3O6S
Exact Mass:
Molecular Weight: 461.46
Elemental Analysis: C, 54.66; H, 4.37; F, 4.12; N, 9.11; O, 20.80; S, 6.95

Price and Availability

Size Price Availability Quantity
1.0g USD 150.0 Same day
5.0g USD 450.0 Same day
10.0g USD 750.0 Same day
20.0g USD 1250.0 Same day
50.0g USD 2650.0 Same day
200.0g USD 6950.0 2 weeks
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Related CAS #: 881681-00-1 (free base)   1260141-27-2 (fumarate)   1260141-27-2  

Synonym: TAK438, TAK-438, TAK 438, Vonoprazan Fumarate, Vonoprazan, Takecab

IUPAC/Chemical Name: 1-(5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)-N-methylmethanamine fumarate

InChi Key: ROGSHYHKHPCCJW-WLHGVMLRSA-N

InChi Code: InChI=1S/C17H16FN3O2S.C4H4O4/c1-19-10-13-9-17(15-6-2-3-7-16(15)18)21(12-13)24(22,23)14-5-4-8-20-11-14;5-3(6)1-2-4(7)8/h2-9,11-12,19H,10H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1+

SMILES Code: CNCC1=CN(C(=C1)C2=CC=CC=C2F)S(=O)(=O)C3=CN=CC=C3.C(=C/C(=O)O)\C(=O)O

Appearance: White to off-white 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: >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).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 461.46 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: Arikawa Y, Nishida H, Kurasawa O, Hasuoka A, Hirase K, Inatomi N, Hori Y, Matsukawa J, Imanishi A, Kondo M, Tarui N, Hamada T, Takagi T, Takeuchi T, Kajino M. Discovery of a novel pyrrole derivative 1-[5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]-N-methylmethanamin e fumarate (TAK-438) as a potassium-competitive acid blocker (P-CAB). J Med Chem. 2012 May 10;55(9):4446-56. doi: 10.1021/jm300318t. Epub 2012 Apr 30. PubMed PMID: 22512618.

2: Kondo M, Kawamoto M, Hasuoka A, Kajino M, Inatomi N, Tarui N. High-throughput screening of potassium-competitive acid blockers. J Biomol Screen. 2012 Feb;17(2):177-82. doi: 10.1177/1087057111421004. Epub 2011 Sep 22. PubMed PMID: 21940711.

3: Shin JM, Inatomi N, Munson K, Strugatsky D, Tokhtaeva E, Vagin O, Sachs G. Characterization of a novel potassium-competitive acid blocker of the gastric H,K-ATPase, 1-[5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]-N-methylmethanamin e monofumarate (TAK-438). J Pharmacol Exp Ther. 2011 Nov;339(2):412-20. doi: 10.1124/jpet.111.185314. Epub 2011 Aug 9. PubMed PMID: 21828261; PubMed Central PMCID: PMC3199995.

4: Hori Y, Matsukawa J, Takeuchi T, Nishida H, Kajino M, Inatomi N. A study comparing the antisecretory effect of TAK-438, a novel potassium-competitive acid blocker, with lansoprazole in animals. J Pharmacol Exp Ther. 2011 Jun;337(3):797-804. doi: 10.1124/jpet.111.179556. Epub 2011 Mar 16. PubMed PMID: 21411494.

5: Matsukawa J, Hori Y, Nishida H, Kajino M, Inatomi N. A comparative study on the modes of action of TAK-438, a novel potassium-competitive acid blocker, and lansoprazole in primary cultured rabbit gastric glands. Biochem Pharmacol. 2011 May 1;81(9):1145-51. doi: 10.1016/j.bcp.2011.02.009. Epub 2011 Mar 1. PubMed PMID: 21371447.

6: Hori Y, Imanishi A, Matsukawa J, Tsukimi Y, Nishida H, Arikawa Y, Hirase K, Kajino M, Inatomi N. 1-[5-(2-Fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]-N-methylmethanamin e monofumarate (TAK-438), a novel and potent potassium-competitive acid blocker for the treatment of acid-related diseases. J Pharmacol Exp Ther. 2010 Oct;335(1):231-8. doi: 10.1124/jpet.110.170274. Epub 2010 Jul 12. PubMed PMID: 20624992.



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