Sivelestat sodium tetrahydrate

This product is for research use only, not for human use. We do not sell to patients.

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Size	Price	Stock
500mg	$599	In Stock
1g	$899	In Stock
5g	$2275	In Stock

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Cat #: V4183 CAS #: 201677-61-4 Purity ≥ 98%

Description: Sivelestat sodium tetrahydrate, the sodium tetrahydrate salt of Sivelestat (also known as ONO5046; LY544349; EI546), is a novel, potent and competitive inhibitor of human neutrophil elastase (HNE) with IC50 value of 44 nM and Ki of 200 nM; it also inhibited leukocyte elastase obtained from rabbit, rat, hamster and mouse.

References: Kawabata K, et al. ONO-5046, a novel inhibitor of human neutrophil elastase. Biochem Biophys Res Commun. 1991 Jun 14;177(2):814-20.

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Physicochemical and Storage Information
Protocol
Related Biological Data
Stock Solution Preparation
Quality Control Documentation

Molecular Weight (MW)	528.51
Molecular Formula	C20H21N2O7S.4H2O.Na
CAS No.	201677-61-4
Storage	-20℃ for 3 years in powder formr
Storage	-80℃ for 2 years in solvent
Solubility In Vitro	DMSO: 100 mg/mLr
	Water: N/Ar
	Ethanol: N/A
Synonyms	Sivelestat sodium tetrahydrate; Sivelestat Sodium Hydrate; Sivelestat sodium, ONO5046-Na, Sodium sivelestat, EI546 sodium, LY544349 sodium; ONO5046, LY544349, EI546; ONO 5046; ONO5046; ONO-5046; LY544349; LY-544349; LY 544349; EI 546 sodium salt hydrate, Elaspol sodium salt hydrate, LY 544349 sodium salt hydrate,

Protocol	In Vitro	Sivelestat (ONO-5046) exhibits IC50 values of 44 nM, 36 nM, 19 nM, 37 nM and 49 nM for human, rabbit, rat, hamster and mouse neutrophil elastase, respectively. Sivelestat (ONO-5046) does not inhibit trypsin, thrombin, plasmin, plasma kallikrein, pancreas kallikrein, chymotrypsin and cathepsin G even at 100 μM.
Protocol	In Vivo	Sivelestat (ONO-5046, 0.021-2.1 mg/kg, intratracheally) suppresses lung hemorrhage in hamster (ID50 = 82 pg/kg) by intratracheal administration and increase of skin capillary permeability in guinea pig (ID50 = 9.6 mg/kg) by intravenous administration, both of which are induced by human neutrophil elastase.

These protocols are for reference only. InvivoChem does not independently validate these methods.

Preparing Stock Solutions

Solvent volume to be added	Mass (the weight of a compound)
Mother liquor concentration	1mg	5mg	10mg	20mg
1mM	1.8921 mL	9.4606 mL	18.9211 mL	37.8422 mL
5mM	0.3784 mL	1.8921 mL	3.7842 mL	7.5684 mL
10mM	0.1892 mL	0.9461 mL	1.8921 mL	3.7842 mL
20mM	0.0946 mL	0.4730 mL	0.9461 mL	1.8921 mL

The molarity calculator equation

Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)

Mass

Concentration

Volume

Molecular Weight*

The dilution calculator equation

Concentration_(start) × Volume_(start) = Concentration_(final) × Volume_(final)

This equation is commonly abbreviated as: C₁ V₁ = C₂ V₂

Concentration_(start)

Volume_(start)

Concentration_(final)

Volume_(final)

Step One: Enter information below

Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals

Step Two: Enter the in vivo formulation

%DMSO + % + %Tween 80 + %ddH₂O

Calculation Results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH₂O,mix and clarify.

Note:

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.