Sivelestat - Moligand™, ≥98%(HPLC) , Leukocyte elastase inhibitor, CAS No.127373-66-4, Leukocyte elastase inhibitor

CAS: 127373-66-4 Cat. No.: S166827 Molecular Weight: 434.46 EC Number: 695-701-7
AVAILABLE TO ORDER
GRADE & PURITY Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%(HPLC)
Synonyms
dl-N-Acetylhomocysteinethiolactone | ONO5046;LY544349;EI546 | SIVELESTAT [INN] | SIVELESTAT [MART.] | 2,2-Dimethyl-propionic acid 4-[2-(carboxymethyl-carbamoyl)-phenylsulfamoyl]-phenyl ester | P,.ALPHA.,.ALPHA.-TRIMETHYLBENZYL ALCOHOL [FHFI] | J-005486 |
Storage
Protected from light,Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5mg
S166827-5mg
5

$26.90

$40.90
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25mg
S166827-25mg
5

$53.90

$80.90
Save $27.00 (33.37%)
100mg
S166827-100mg
5

$79.90

$119.90
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250mg
S166827-250mg
5

$134.90

$202.90
Save $68.00 (33.51%)
1g
S166827-1g
5

$342.90

$514.90
Save $172.00 (33.40%)
5g
S166827-5g
2

$1,211.90

$1,817.90
Save $606.00 (33.34%)
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Why this grade

Moligand™, ≥98%(HPLC) Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Protected from light,Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Product description

Sivelestat (EI546) is a competitive inhibitor of human neutrophil elastase, with an IC50 of 44 nM and a Ki of 200 nM. Sivelestat (EI546) has the potential for the study of acute lung injury/acute respiratory distress syndrome or disseminated intravascular coagulation in COVID-19

Specifications

Synonyms
dl-N-Acetylhomocysteinethiolactone | ONO5046;LY544349;EI546 | SIVELESTAT [INN] | SIVELESTAT [MART.] | 2, 2-Dimethyl-propionic acid 4-[2-(carboxymethyl-carbamoyl)-phenylsulfamoyl]-phenyl ester | P, .ALPHA., .ALPHA.-TRIMETHYLBENZYL ALCOHOL [FHFI] | J-005486 |
Specifications & Purity
Moligand™, ≥98%(HPLC)
Biochemical and Physiological Mechanisms
Potent, selective, substrate competitive neutrophil elastase inhibitor (IC 50 values are 19-49 nM and 5.6 μM for leukocyte and pancreas elastase respectively). Suppresses neutrophil-induced capillary permeability and leukocyte kinetics. Active in vivo. Si
Storage
Protected from light, Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Moligand™
Action Type
INHIBITOR
Mechanism of action
Leukocyte elastase inhibitor
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥98%(HPLC)
Product Properties
ALogP3
Names and Identifiers
Pubchem Sid488187416
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488187416
Canonical SmilesCC(C)(C)C(=O)OC1=CC=C(C=C1)S(=O)(=O)NC2=CC=CC=C2C(=O)NCC(=O)O
IUPAC Name2-[[2-[[4-(2,2-dimethylpropanoyloxy)phenyl]sulfonylamino]benzoyl]amino]acetic acid
InChIKeyBTGNGJJLZOIYID-UHFFFAOYSA-N
INCHI1S/C20H22N2O7S/c1-20(2,3)19(26)29-13-8-10-14(11-9-13)30(27,28)22-16-7-5-4-6-15(16)18(25)21-12-17(23)24/h4-11,22H,12H2,1-3H3,(H,21,25)(H,23,24)
Isomeric SMILES CC(C)(C)C(=O)OC1=CC=C(C=C1)S(=O)(=O)NC2=CC=CC=C2C(=O)NCC(=O)O
Alternate CAS 331731-18-1,127373-66-4
MeSH Entry Terms N-(2-(4-(2,2-dimethylpropionyloxy)phenylsulfonylamino)benzoyl)aminoacetic acid;ONO 5046;ONO-5046;Ono-EI-600;sivelestat
Molecular Weight 434.46
Reaxy-Rn 7666855
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=7666855&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Benzamides - Hippuric acids and derivatives
Direct ParentHippuric acids
Alternative Parents N-acyl-alpha amino acids  Benzenesulfonamides  Sulfanilides  Phenol esters  Benzenesulfonyl compounds  Phenoxy compounds  Benzoyl derivatives  Organosulfonamides  Dicarboxylic acids and derivatives  Vinylogous amides  Aminosulfonyl compounds  Carboxylic acid esters  Secondary carboxylic acid amides  Carboxylic acids  Organopnictogen compounds  Hydrocarbon derivatives  Carbonyl compounds  Organic oxides  Organonitrogen compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Hippuric acid - N-acyl-alpha-amino acid - N-acyl-alpha amino acid or derivatives - Alpha-amino acid or derivatives - Benzenesulfonamide - Phenol ester - Sulfanilide - Benzenesulfonyl group - Phenoxy compound - Benzoyl - Dicarboxylic acid or derivatives - Organosulfonic acid amide - Vinylogous amide - Aminosulfonyl compound - Sulfonyl - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Carboxylic acid ester - Carboxamide group - Secondary carboxylic acid amide - Carboxylic acid - Carboxylic acid derivative - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Hydrocarbon derivative - Organic oxide - Organosulfur compound - Organic oxygen compound - Organopnictogen compound - Carbonyl group - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as hippuric acids. These are compounds containing hippuric acid, which consists of a of a benzoyl group linked to the N-terminal of a glycine.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
ELANE Tclin Neutrophil elastase (13 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
PRTN3 Tchem Myeloblastin (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
F2 Tclin Thrombin (11687 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ESR1 Tclin Estrogen receptor alpha (17718 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NR3C1 Tclin Glucocorticoid receptor (14987 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PGR Tclin Progesterone receptor (8562 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRB2 Tclin Beta-2 adrenergic receptor (11824 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CHRM2 Tclin Muscarinic acetylcholine receptor M2 (10671 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRB1 Tclin Beta-1 adrenergic receptor (6630 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR1A Tclin Serotonin 1a (5-HT1a) receptor (14969 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA2A Tclin Alpha-2a adrenergic receptor (9450 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AR Tclin Androgen Receptor (11781 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CHRM1 Tclin Muscarinic acetylcholine receptor M1 (12690 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
DRD2 Tclin Dopamine D2 receptor (23596 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GABRA1 Tclin GABA receptor alpha-1 subunit (399 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MAOA Tclin Monoamine oxidase A (11911 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CNR1 Tclin Cannabinoid CB1 receptor (20913 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
DRD1 Tclin Dopamine D1 receptor (9720 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PTGS1 Tclin Cyclooxygenase-1 (9233 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A2 Tclin Norepinephrine transporter (10102 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HRH2 Tclin Histamine H2 receptor (5428 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2A Tclin Serotonin 2a (5-HT2a) receptor (14758 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2C Tclin Serotonin 2c (5-HT2c) receptor (11471 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AVPR2 Tclin Vasopressin V2 receptor (2912 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADORA1 Tclin Adenosine A1 receptor (17603 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AGTR1 Tclin Type-1 angiotensin II receptor (5176 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A4 Tclin Serotonin transporter (12625 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PTGS2 Tclin Cyclooxygenase-2 (13999 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HRH1 Tclin Histamine H1 receptor (7573 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OPRM1 Tclin Mu opioid receptor (19785 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
DRD3 Tclin Dopamine D3 receptor (14368 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AVPR1A Tclin Vasopressin V1a receptor (5412 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OPRD1 Tclin Delta opioid receptor (15096 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
OPRK1 Tclin Kappa opioid receptor (16155 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR3A Tclin Serotonin 3a (5-HT3a) receptor (3366 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A3 Tclin Dopamine transporter (10535 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GRIN1 Tclin Glutamate (NMDA) receptor subunit zeta 1 (122 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
KCNH2 Tclin HERG (29587 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CACNA1C Tclin Voltage-gated L-type calcium channel alpha-1C subunit (766 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PDE3A Tclin Phosphodiesterase 3A (3309 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA2B Tclin Alpha-2b adrenergic receptor (4412 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADRA2C Tclin Alpha-2c adrenergic receptor (4876 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CHRM3 Tclin Muscarinic acetylcholine receptor M3 (7750 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HTR2B Tclin Serotonin 2b (5-HT2b) receptor (10323 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ELANE Tclin Leukocyte elastase (8173 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TBXA2R Tclin Thromboxane A2 receptor (5717 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
EDNRA Tclin Endothelin receptor ET-A (5008 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADORA2A Tclin Adenosine A2a receptor (16305 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ADORA3 Tchem Adenosine A3 receptor (15931 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
BDKRB2 Tclin Bradykinin B2 receptor (3970 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HRH3 Tclin Histamine H3 receptor (10389 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CTSG Tchem Cathepsin G (2304 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Npy1r Neuropeptide Y receptor type 1 (8 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Trypsin (394 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Cckar Cholecystokinin A receptor (90 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Pde4d Phosphodiesterase 4D (4 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Hdac6 Histone deacetylase 6 (222 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Kallikrein 1 (28 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Cavia porcellus (23802 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Cricetinae gen. sp. (3197 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NIH3T3 (5395 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Elane Neutrophil elastase (15 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasma (328 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CELA2A Pancreatic elastase (395 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Liver microsome (341 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

17 results found

Lot NumberCertificate TypeDateItem
D2308615Certificate of AnalysisJan 20, 2026 S166827
D2308485Certificate of AnalysisJan 20, 2026 S166827
D2308461Certificate of AnalysisJan 20, 2026 S166827
D2308470Certificate of AnalysisJan 20, 2026 S166827
D2308473Certificate of AnalysisJan 20, 2026 S166827
D2308475Certificate of AnalysisJan 20, 2026 S166827
D2308481Certificate of AnalysisJan 20, 2026 S166827
D2308478Certificate of AnalysisJan 20, 2026 S166827
D2308479Certificate of AnalysisJan 20, 2026 S166827
D2308476Certificate of AnalysisFeb 20, 2023 S166827
H2507083Certificate of AnalysisFeb 20, 2023 S166827
D2308483Certificate of AnalysisFeb 20, 2023 S166827
D2308477Certificate of AnalysisFeb 20, 2023 S166827
A2613086Certificate of AnalysisFeb 20, 2023 S166827
A2623108Certificate of AnalysisFeb 20, 2023 S166827
A2623103Certificate of AnalysisFeb 20, 2023 S166827
A2621015Certificate of AnalysisFeb 20, 2023 S166827

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Chemical and Physical Properties
Sensitivitylight sensitive
Molecular Weight434.500 g/mol
XLogP33.000
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count8
Rotatable Bond Count9
Exact Mass434.115 Da
Monoisotopic Mass434.115 Da
Topological Polar Surface Area147.000 Ų
Heavy Atom Count30
Formal Charge0
Complexity731.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

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