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

MedKoo CAT#: 510229

CAS#: 908253-63-4

Description: Nivocasan, also known as GS-9450 and LB-84451, a novel caspase-inhibitor has demonstrated hepatoprotective activity in fibrosis/apoptosis animal models. GS-9450 treatment induced significant reductions in ALT levels in NASH patients.

Price and Availability




Nivocasan is not in stock, but may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 510229
Name: Nivocasan
CAS#: 908253-63-4
Chemical Formula: C21H22FN3O5
Exact Mass: 415.15435
Molecular Weight: 415.41
Elemental Analysis: C, 60.72; H, 5.34; F, 4.57; N, 10.12; O, 19.26

Synonym: GS 9450; GS-9450; GS9450; LB 84451; LB-84451; LB84451; Nivocasan

IUPAC/Chemical Name: (R)-N-((2S,3S)-2-(fluoromethyl)-2-hydroxy-5-oxotetrahydrofuran-3-yl)-5-isopropyl-3-(isoquinolin-1-yl)-4,5-dihydroisoxazole-5-carboxamide


InChi Code: InChI=1S/C21H22FN3O5/c1-12(2)20(19(27)24-16-9-17(26)29-21(16,28)11-22)10-15(25-30-20)18-14-6-4-3-5-13(14)7-8-23-18/h3-8,12,16,28H,9-11H2,1-2H3,(H,24,27)/t16-,20+,21+/m0/s1

SMILES Code: O=C([C@]1(C(C)C)CC(C2=NC=CC3=C2C=CC=C3)=NO1)N[C@@H](C4)[C@@](O)(CF)OC4=O

Technical Data

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).

Harmonized System Code:

Additional Information



1: Ratziu V, Sheikh MY, Sanyal AJ, Lim JK, Conjeevaram H, Chalasani N, Abdelmalek M, Bakken A, Renou C, Palmer M, Levine RA, Bhandari BR, Cornpropst M, Liang W, King B, Mondou E, Rousseau FS, McHutchison J, Chojkier M. A phase 2, randomized, double-blind, placebo-controlled study of GS-9450 in subjects with nonalcoholic steatohepatitis. Hepatology. 2012 Feb;55(2):419-28. doi: 10.1002/hep.24747. Epub 2011 Dec 14. PubMed PMID: 22006541; PubMed Central PMCID: PMC3779694.

2: Arends JE, Hoepelman AI, Nanlohy NM, Höppener FJ, Hirsch KR, Park JG, van Baarle D. Low doses of the novel caspase-inhibitor GS-9450 leads to lower caspase-3 and -8 expression on peripheral CD4+ and CD8+ T-cells. Apoptosis. 2011 Sep;16(9):959-66. doi: 10.1007/s10495-011-0620-2. PubMed PMID: 21667042; PubMed Central PMCID: PMC3152720.

3: Gramer MJ, Eckblad JJ, Donahue R, Brown J, Shultz C, Vickerman K, Priem P, van den Bremer ET, Gerritsen J, van Berkel PH. Modulation of antibody galactosylation through feeding of uridine, manganese chloride, and galactose. Biotechnol Bioeng. 2011 Jul;108(7):1591-602. doi: 10.1002/bit.23075. Epub 2011 Feb 18. PubMed PMID: 21328321.