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

MedKoo CAT#: 206228

CAS#: 198821-22-6

Description: Merimepodib, also known as VX-497, is orally bioavailable IMPDH inhibitor, which inhibits the proliferation of primary human, mouse, rat, and dog lymphocytes at concentrations of approximately 100 nM. In vivo, oral administration of VX-497 inhibits the primary IgM antibody response in a dose-dependent manner, with an ED(50) value of approximately 30-35 mg/kg in mice. Single daily dosing of VX-497 is observed to be as effective as twice-daily dosing in this model of immune activation. These studies demonstrate that VX-497 is a potent, specific, and reversible IMPDH inhibitor that selectively inhibits lymphocyte proliferation.

Chemical Structure

CAS# 198821-22-6

Theoretical Analysis

MedKoo Cat#: 206228
Name: Merimepodib
CAS#: 198821-22-6
Chemical Formula: C23H24N4O6
Exact Mass: 452.16958
Molecular Weight: 452.46
Elemental Analysis: C, 61.05; H, 5.35; N, 12.38; O, 21.22

Size Price Shipping out time Quantity
5mg USD 90 Same day
10mg USD 165 Same day
25mg USD 450 Same day
50mg USD 650 Same day
100mg USD 950 Same day
200mg USD 1650 Same day
500mg USD 2450 Same day
1g USD 3650 2 Weeks
2g USD 5650 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-04. Prices are subject to change without notice.

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

Synonym: Merimepodib; VX497; VX-497; VX 497; MMP; VI21497; VI-21497; VI 21497.

IUPAC/Chemical Name: (S)-tetrahydrofuran-3-yl 3-(3-(3-methoxy-4-(oxazol-5-yl)phenyl)ureido)benzylcarbamate


InChi Code: InChI=1S/C23H24N4O6/c1-30-20-10-17(5-6-19(20)21-12-24-14-32-21)27-22(28)26-16-4-2-3-15(9-16)11-25-23(29)33-18-7-8-31-13-18/h2-6,9-10,12,14,18H,7-8,11,13H2,1H3,(H,25,29)(H2,26,27,28)/t18-/m0/s1


white 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:
>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:

Preparing Stock Solutions

The following data is based on the product molecular weight 452.46 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.

Select a batch to recalculate based on the batch molecular weight:
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

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

1: McHutchison JG, Shiffman ML, Cheung RC, Gordon SC, Wright TL, Pottage JC Jr, McNair L, Ette E, Moseley S, Alam J. A randomized, double-blind, placebo-controlled dose-escalation trial of merimepodib (VX-497) and interferon-alpha in previously untreated patients with chronic hepatitis C. Antivir Ther. 2005;10(5):635-43. PubMed PMID: 16152757.

2: Decker CJ, Heiser AD, Chaturvedi PR, Faust TJ, Ku G, Moseley S, Nimmesgern E. The novel IMPDH inhibitor VX-497 prolongs skin graft survival and improves graft versus host disease in mice. Drugs Exp Clin Res. 2001;27(3):89-95. PubMed PMID: 11447770.

3: Phase II clinical trial of VX-497 for HCV infection begins. AIDS Patient Care STDS. 1998 Dec;12(12):944. PubMed PMID: 11362074.

4: Jain J, Almquist SJ, Shlyakhter D, Harding MW. VX-497: a novel, selective IMPDH inhibitor and immunosuppressive agent. J Pharm Sci. 2001 May;90(5):625-37. PubMed PMID: 11288107.

5: Markland W, McQuaid TJ, Jain J, Kwong AD. Broad-spectrum antiviral activity of the IMP dehydrogenase inhibitor VX-497: a comparison with ribavirin and demonstration of antiviral additivity with alpha interferon. Antimicrob Agents Chemother. 2000 Apr;44(4):859-66. PubMed PMID: 10722482; PubMed Central PMCID: PMC89783.

Additional Information