MedKoo Cat#: 530449 | Name: ML161
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Description:

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

ML-161 is a potent and reversible inhibitor of proteinase-activated receptor 1 (PAR1) on platelets, preventing surface expression of P-selectin induced by the peptide SFLLRN with an IC50 value of 0.26 µM. ML161 inhibited platelet aggregation induced by a PAR1 peptide agonist or by thrombin but not by several other platelet agonists. Initial studies suggest that ML161 is an allosteric inhibitor of PAR1. These findings may be important for the discovery of antithrombotics with an improved safety profile.

Chemical Structure

ML161
ML161
CAS#423735-93-7

Theoretical Analysis

MedKoo Cat#: 530449

Name: ML161

CAS#: 423735-93-7

Chemical Formula: C17H17BrN2O2

Exact Mass: 360.0473

Molecular Weight: 361.24

Elemental Analysis: C, 56.52; H, 4.74; Br, 22.12; N, 7.75; O, 8.86

Price and Availability

Size Price Availability Quantity
50mg USD 450.00 2 Weeks
100mg USD 750.00 2 Weeks
200mg USD 1,250.00 2 Weeks
500mg USD 2,650.00 2 Weeks
1g USD 4,250.00 2 Weeks
2g USD 6,450.00 2 Weeks
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Related CAS #
No Data
Synonym
ML-161; ML 161; ML161; AG-670; CID-1048267; AG670; CID1048267; AG 670; CID 1048267.
IUPAC/Chemical Name
2-bromo-N-[3-[(1-oxobutyl)amino]phenyl]-benzamide
InChi Key
DFOVLSMXPWPCFH-UHFFFAOYSA-N
InChi Code
InChI=1S/C17H17BrN2O2/c1-2-6-16(21)19-12-7-5-8-13(11-12)20-17(22)14-9-3-4-10-15(14)18/h3-5,7-11H,2,6H2,1H3,(H,19,21)(H,20,22)
SMILES Code
O=C(NC1=CC=CC(NC(CCC)=O)=C1)C2=CC=CC=C2Br
Appearance
Solid powder
Purity
>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).
Solubility
Soluble in DMSO
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
2934.99.9001
More Info
Product Data
Biological target:
ML161 (Parmodulin 2) is an allosteric inhibitor of PAR1 with IC50 of 0.26 μM.
In vitro activity:
ML161 displayed dose-dependent inhibition of thrombin-induced platelet activation, as measured by P-selectin expression (Figure S2 in the Supporting Information). ML161 displayed selective inhibition of SFLLRN and thrombin-induced platelet aggregation, both of which operate via PAR1, and had no effect on AYPGKF, thromboxane, or ADP-induced platelet aggregation, which are all agonists at alternative platelet GPCRs (Figure S3 in the Supporting Information). Reference: ACS Med Chem Lett. 2012 Mar 8;3(3):232-237. https://pubmed.ncbi.nlm.nih.gov/22408714/
In vivo activity:
TBD
Solvent mg/mL mM comments
Solubility
DMSO 44.4 122.84
Ethanol 30.6 84.60
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 361.24 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
1. Gandhi DM, Rosas R Jr, Greve E, Kentala K, D-R Diby N, Snyder VA, Stephans A, Yeung THW, Subramaniam S, DiMilo E, Kurtenbach KE, Arnold LA, Weiler H, Dockendorff C. The parmodulin NRD-21 is an allosteric inhibitor of PAR1 Gq signaling with improved anti-inflammatory activity and stability. Bioorg Med Chem. 2019 Sep 1;27(17):3788-3796. doi: 10.1016/j.bmc.2019.06.043. Epub 2019 Jun 29. PMID: 31320211; PMCID: PMC6706283. 2. Dockendorff C, Aisiku O, Verplank L, Dilks JR, Smith DA, Gunnink SF, Dowal L, Negri J, Palmer M, Macpherson L, Schreiber SL, Flaumenhaft R. Discovery of 1,3-Diaminobenzenes as Selective Inhibitors of Platelet Activation at the PAR1 Receptor. ACS Med Chem Lett. 2012 Mar 8;3(3):232-237. doi: 10.1021/ml2002696. Epub 2012 Jan 30. PMID: 22408714; PMCID: PMC3297361.
In vitro protocol:
1. Gandhi DM, Rosas R Jr, Greve E, Kentala K, D-R Diby N, Snyder VA, Stephans A, Yeung THW, Subramaniam S, DiMilo E, Kurtenbach KE, Arnold LA, Weiler H, Dockendorff C. The parmodulin NRD-21 is an allosteric inhibitor of PAR1 Gq signaling with improved anti-inflammatory activity and stability. Bioorg Med Chem. 2019 Sep 1;27(17):3788-3796. doi: 10.1016/j.bmc.2019.06.043. Epub 2019 Jun 29. PMID: 31320211; PMCID: PMC6706283. 2. Dockendorff C, Aisiku O, Verplank L, Dilks JR, Smith DA, Gunnink SF, Dowal L, Negri J, Palmer M, Macpherson L, Schreiber SL, Flaumenhaft R. Discovery of 1,3-Diaminobenzenes as Selective Inhibitors of Platelet Activation at the PAR1 Receptor. ACS Med Chem Lett. 2012 Mar 8;3(3):232-237. doi: 10.1021/ml2002696. Epub 2012 Jan 30. PMID: 22408714; PMCID: PMC3297361.
In vivo protocol:
TBD