Home>>Sivelestat sodium tetrahydrate
Sivelestat sodium tetrahydrate Catalog No.GC19523

Sivelestat is a competitive inhibitor of human neutrophil elastase

Size Price Stock Qty
10 mM * 1 mL in DMSO
In stock
In stock
In stock
In stock

Customer Review

Based on customer reviews.

Tel: (626) 353-8530 Email: sales@glpbio.com

Sample solution is provided at 25 µL, 10mM.

Chemical Properties

Cas No. 201677-61-4 SDF Download SDF
Synonyms EI546 sodium tetrahydrate; LY544349 sodium tetrahydrate; ONO5046 sodium tetrahydrate
Chemical Name N/A
Canonical SMILES [O-]C(CNC(C1=CC=CC=C1NS(C2=CC=C(OC(C(C)(C)C)=O)C=C2)(=O)=O)=O)=O.[Na+].O.O.O.O
Formula C₂₀H₂₉N₂NaO₁₁S M.Wt 528.51
Solubility Soluble in DMSO Storage Store at -20°C
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
  • Molarity Calculator

  • Dilution Calculator

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



Sivelestat(ONO5046; LY544349; EI546) is a competitive inhibitor of human neutrophil elastase(IC50 = 44 nM; Ki=200 nM); also inhibited leukocyte elastase obtained from rabbit, rat, hamster and mouse. IC50 value: 44 nM [1] Target: neutrophil elastase ONO-5046 did not inhibit trypsin, thrombin, plasmin, plasma kallikrein, pancreas kallikrein, chymotrypsin and cathepsin G even at 100 microM. In in vivo studies, ONO-5046 suppressed lung hemorrhage in hamster (ID50 = 82 micrograms/kg) by intratracheal administration and increase of skin capillary permeability in guinea pig (ID50 = 9.6 mg/kg) by intravenous administration, both of which were induced by human neutrophil elastase [1]. Sivelestat sodium hydrate is an anti-neutrophil elastase inhibitor and may be one of the treatment options for acute respiratory failure due to pneumocystis pneumonia in AIDS patients [2].


[1]. Kawabata K, et al. ONO-5046, a novel inhibitor of human neutrophil elastase. Biochem Biophys Res Commun. 1991 Jun 14;177(2):814-20.
[2]. Imokawa S, et al. Acute respiratory failure due to pneumocystis pneumonia successfully treated with combined use of sivelestat sodium hydrate. Nihon Kokyuki Gakkai Zasshi. 2008 Jun;46(6):461-5.