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MedKoo CAT#: 510324

CAS#: 668467-91-2

Description: LDN-57444 is a Uch-L1 inhibitor ( ubiquitin C-terminal hydrolase-L1) with Ki= 0.4 μ M. Ubiquitin carboxy-terminal hydrolase L1 ( UCH-L1 ) is an intracellular protein abundantly expressed in neurons, and a mutation in UCH-L1 has been identified in familial Parkinson's disease.

Price and Availability

Size Price Shipping out time Quantity
10mg USD 90 2 Weeks
25mg USD 150 2 Weeks
50mg USD 250 2 Weeks
100mg USD 450 2 Weeks
200mg USD 650 2 Weeks
500mg USD 1350 2 Weeks
1g USD 2050 2 Weeks
2g USD 2950 2 Weeks
5g USD 4250 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2020-10-26. Prices are subject to change without notice.

LDN-57444, purity > 98%, is in stock. The same day shipping out after order is received. Note: the estimated shipping out time for order > 500mg may be 2 weeks.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 510324
Name: LDN-57444
CAS#: 668467-91-2
Chemical Formula: C17H11Cl3N2O3
Exact Mass: 395.9835
Molecular Weight: 397.64
Elemental Analysis: C, 51.35; H, 2.79; Cl, 26.75; N, 7.04; O, 12.07

Synonym: LDN57444; LDN 57444; LDN-57444.

IUPAC/Chemical Name: (Z)-3-(acetoxyimino)-5-chloro-1-(2,5-dichlorobenzyl)indolin-2-one.


InChi Code: InChI=1S/C17H11Cl3N2O3/c1-9(23)25-21-16-13-7-12(19)3-5-15(13)22(17(16)24)8-10-6-11(18)2-4-14(10)20/h2-7H,8H2,1H3/b21-16-

SMILES Code: O=C1N(CC2=CC(Cl)=CC=C2Cl)C3=C(C=C(Cl)C=C3)/C1=N/OC(C)=O

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Certificate of Analysis:

Safety Data Sheet (SDS):

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:

Additional Information



1: Sankiewicz A, Laudanski P, Romanowicz L, Hermanowicz A, Roszkowska-Jakimiec W, Debek W, Gorodkiewicz E. Development of surface plasmon resonance imaging biosensors for detection of ubiquitin carboxyl-terminal hydrolase L1. Anal Biochem. 2015 Jan 15;469:4-11. doi: 10.1016/j.ab.2014.09.021. Epub 2014 Oct 13. PubMed PMID: 25312468.

2: Powis RA, Mutsaers CA, Wishart TM, Hunter G, Wirth B, Gillingwater TH. Increased levels of UCHL1 are a compensatory response to disrupted ubiquitin homeostasis in spinal muscular atrophy and do not represent a viable therapeutic target. Neuropathol Appl Neurobiol. 2014 Dec;40(7):873-87. doi: 10.1111/nan.12168. PubMed PMID: 25041530.

3: Xie M, Wang SH, Lu ZM, Pan Y, Chen QC, Liao XM. UCH-L1 inhibition involved in CREB dephosphorylation in hippocampal slices. J Mol Neurosci. 2014 May;53(1):59-68. doi: 10.1007/s12031-013-0197-z. Epub 2013 Dec 10. PubMed PMID: 24323362.

4: Martínez-Villarreal J, García Tardón N, Ibáñez I, Giménez C, Zafra F. Cell surface turnover of the glutamate transporter GLT-1 is mediated by ubiquitination/deubiquitination. Glia. 2012 Sep;60(9):1356-65. doi: 10.1002/glia.22354. Epub 2012 May 16. PubMed PMID: 22593014.

5: Zhang M, Deng Y, Luo Y, Zhang S, Zou H, Cai F, Wada K, Song W. Control of BACE1 degradation and APP processing by ubiquitin carboxyl-terminal hydrolase L1. J Neurochem. 2012 Mar;120(6):1129-38. doi: 10.1111/j.1471-4159.2011.07644.x. Epub 2012 Feb 10. PubMed PMID: 22212137.

6: White RR, Miyata S, Papa E, Spooner E, Gounaris K, Selkirk ME, Artavanis-Tsakonas K. Characterisation of the Trichinella spiralis deubiquitinating enzyme, TsUCH37, an evolutionarily conserved proteasome interaction partner. PLoS Negl Trop Dis. 2011 Oct;5(10):e1340. doi: 10.1371/journal.pntd.0001340. Epub 2011 Oct 4. PubMed PMID: 22013496; PubMed Central PMCID: PMC3186758.

7: Hsu SH, Lai MC, Er TK, Yang SN, Hung CH, Tsai HH, Lin YC, Chang JG, Lo YC, Jong YJ. Ubiquitin carboxyl-terminal hydrolase L1 (UCHL1) regulates the level of SMN expression through ubiquitination in primary spinal muscular atrophy fibroblasts. Clin Chim Acta. 2010 Dec 14;411(23-24):1920-8. doi: 10.1016/j.cca.2010.07.035. Epub 2010 Aug 14. PubMed PMID: 20713032.

8: Cartier AE, Djakovic SN, Salehi A, Wilson SM, Masliah E, Patrick GN. Regulation of synaptic structure by ubiquitin C-terminal hydrolase L1. J Neurosci. 2009 Jun 17;29(24):7857-68. doi: 10.1523/JNEUROSCI.1817-09.2009. PubMed PMID: 19535597; PubMed Central PMCID: PMC2748938.

9: Tan YY, Zhou HY, Wang ZQ, Chen SD. Endoplasmic reticulum stress contributes to the cell death induced by UCH-L1 inhibitor. Mol Cell Biochem. 2008 Nov;318(1-2):109-15. doi: 10.1007/s11010-008-9862-x. Epub 2008 Jul 12. PubMed PMID: 18622688.

10: Susor A, Ellederova Z, Jelinkova L, Halada P, Kavan D, Kubelka M, Kovarova H. Proteomic analysis of porcine oocytes during in vitro maturation reveals essential role for the ubiquitin C-terminal hydrolase-L1. Reproduction. 2007 Oct;134(4):559-68. PubMed PMID: 17890291.