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

MedKoo CAT#: 406727

CAS#: 297730-05-3

Description: VX-148 is a novel, uncompetitive IMPDH inhibitor with a K(i) value of 6 nM against IMPDH type II enzyme. VX-148 is slightly more potent than mycophenolic acid and VX-497 in inhibiting the proliferation of mitogen-stimulated primary human lymphocytes (IC(50) value of ~80 nM). The inhibitory activity of VX-148 is alleviated in the presence of exogenous guanosine. VX-148 does not inhibit proliferation of nonlymphoid cell types such as fibroblasts, indicating selectivity for inhibition of IMPDH activity. VX-148 is orally bioavailable in rats and mice; oral administration of VX-148 inhibits primary antibody response in mice in a dose-dependent manner with an ED(50) value of 38 mg/kg b.i.d. VX-148 significantly prolongs skin graft survival at 100 mg/kg b.i.d. in mice.

Chemical Structure

CAS# 297730-05-3

Theoretical Analysis

MedKoo Cat#: 406727
Name: VX-148
CAS#: 297730-05-3
Chemical Formula: C23H25N5O4
Exact Mass: 435.19065
Molecular Weight: 435.48
Elemental Analysis: C, 63.44; H, 5.79; N, 16.08; O, 14.70

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Synonym: VX148, VX-148, VX 148

IUPAC/Chemical Name: (R)-1-cyanobutan-2-yl ((S)-1-(3-(3-(4-cyano-3-methoxyphenyl)ureido)phenyl)ethyl)carbamate


InChi Code: InChI=1S/C23H25N5O4/c1-4-20(10-11-24)32-23(30)26-15(2)16-6-5-7-18(12-16)27-22(29)28-19-9-8-17(14-25)21(13-19)31-3/h5-9,12-13,15,20H,4,10H2,1-3H3,(H,26,30)(H2,27,28,29)/t15-,20+/m0/s1


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 435.48 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: Dunkern T, Chavan S, Bankar D, Patil A, Kulkarni P, Kharkar PS, Prabhu A, Goebel H, Rolser E, Burckhard-Boer W, Arumugam P, Makhija MT. Design, synthesis and biological evaluation of novel inosine 5'-monophosphate dehydrogenase (IMPDH) inhibitors. J Enzyme Inhib Med Chem. 2013 May 10. [Epub ahead of print] PubMed PMID: 23663081.

2: Jain J, Almquist SJ, Heiser AD, Shlyakhter D, Leon E, Memmott C, Moody CS, Nimmesgern E, Decker C. Characterization of pharmacological efficacy of VX-148, a new, potent immunosuppressive inosine 5'-monophosphate dehydrogenase inhibitor. J Pharmacol Exp Ther. 2002 Sep;302(3):1272-7. PubMed PMID: 12183689.


10.0mg / Not available