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ChemicalBook >> CAS DataBase List >> AM 251

AM 251

AM 251 price.
  • $28 - $1300
  • Product name: AM 251
  • CAS: 183232-66-8
  • MF: C22H21Cl2IN4O
  • MW: 555.24
  • EINECS:
  • MDL Number:MFCD01861181
  • Synonyms:AM 251;1-(2,4-DICHLOROPHENYL)-5-(4-IODOPHENYL)-4-METHYL-N-1-PIPERIDINYL-1 H-PYRAZOLE-3-CARBOXAMIDE;N-(PIPERIDIN-1-YL)-5-(4-IODOPHENYL)-1-(2,4-DICHLOROPHENYL)-4-METHYL-1H-PYRAZOLE-3-CARBOXAMIDE;AM-251 ,99%;AM 251 (pharmaceutical);1H-Pyrazole-3-carboxamide, 1-(2,4-dichlorophenyl)-5-(4-iodophenyl)-4-methyl-N-1-piperidinyl-;1-(2,4-Dichlorophenyl)-5-(4-iodophenyl)-4-methyl-N-1-piperidinyl-1H-pyrazole-3-carboxamide AM251;AM251;AM-251
61 prices
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Brand
  • ApexBio Technology
  • Arctom
  • AvaChem
  • Axon Medchem
  • Biorbyt Ltd
  • Biosynth
  • Cayman Chemical
  • Chem-Impex
  • ChemScene
  • DC Chemicals
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TCI Chemical
  • Tocris
  • TRC
  • Usbiological
Package
  • 2mg
  • 250mg
  • 1g
  • 1mlx10mM(inDMSO)
  • 1
  • 1mg
  • 50
  • 10
  • 10mM*1mLinDMSO(Solution)
  • 1unit
  • EvaluationSample
  • 10mM*1mLinDMSO(Solid+Solvent)
  • 5mg
  • 10mg
  • 25mg
  • 50mg
  • 100mg
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM 251
  • Packaging1unit
  • Price$28
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM251
  • PackagingEvaluationSample
  • Price$30
  • Updated2026-05-06
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM 251
  • Packaging5mg
  • Price$40
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM251
  • Packaging5mg
  • Price$51
  • Updated2026-05-06
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM 251
  • Packaging10mg
  • Price$65
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM251
  • Packaging10mg
  • Price$84
  • Updated2026-05-06
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM 251
  • Packaging50mg
  • Price$250
  • Updated2021-12-16
  • Buy
  • ManufacturerApexBio Technology
  • Product numberB1427
  • Product descriptionAM251
  • Packaging50mg
  • Price$324
  • Updated2026-05-06
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging50mg
  • Price$300
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging100mg
  • Price$496
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging25mg
  • Price$179
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging10mg
  • Price$90
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging5mg
  • Price$53
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging10mM*1mLinDMSO(Solid+Solvent)
  • Price$61
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-15443
  • Product descriptionAM251 99.09%
  • Packaging10mM*1mLinDMSO(Solution)
  • Price$64
  • Updated2026-05-26
  • Buy
  • ManufacturerAvaChem
  • Product number6083
  • Product descriptionAM251 98%
  • Packaging10mg
  • Price$72
  • Updated2026-05-22
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
ApexBio Technology B1427 AM 251 1unit $28 2021-12-16 Buy
ApexBio Technology B1427 AM251 EvaluationSample $30 2026-05-06 Buy
ApexBio Technology B1427 AM 251 5mg $40 2021-12-16 Buy
ApexBio Technology B1427 AM251 5mg $51 2026-05-06 Buy
ApexBio Technology B1427 AM 251 10mg $65 2021-12-16 Buy
ApexBio Technology B1427 AM251 10mg $84 2026-05-06 Buy
ApexBio Technology B1427 AM 251 50mg $250 2021-12-16 Buy
ApexBio Technology B1427 AM251 50mg $324 2026-05-06 Buy
Arctom HY-15443 AM251 99.09% 50mg $300 2026-05-26 Buy
Arctom HY-15443 AM251 99.09% 100mg $496 2026-05-26 Buy
Arctom HY-15443 AM251 99.09% 25mg $179 2026-05-26 Buy
Arctom HY-15443 AM251 99.09% 10mg $90 2026-05-26 Buy
Arctom HY-15443 AM251 99.09% 5mg $53 2026-05-26 Buy
Arctom HY-15443 AM251 99.09% 10mM*1mLinDMSO(Solid+Solvent) $61 2026-05-26 Buy
Arctom HY-15443 AM251 99.09% 10mM*1mLinDMSO(Solution) $64 2026-05-26 Buy
AvaChem 6083 AM251 98% 10mg $72 2026-05-22 Buy

Properties

Melting point :195-196℃
Density :1.65±0.1 g/cm3(Predicted)
storage temp. :Store at RT
solubility :DMSO: >10 mg/mL, soluble
pka :11.31±0.20(Predicted)
form :solid
color :white
Stability :Stable for 1 year as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 3 months.
InChI :1S/C22H21Cl2IN4O/c1-14-20(22(30)27-28-11-3-2-4-12-28)26-29(19-10-7-16(23)13-18(19)24)21(14)15-5-8-17(25)9-6-15/h5-10,13H,2-4,11-12H2,1H3,(H,27,30)
InChIKey :BUZAJRPLUGXRAB-UHFFFAOYSA-N
SMILES :Cc1c(nn(-c2ccc(Cl)cc2Cl)c1-c3ccc(I)cc3)C(=O)NN4CCCCC4
CAS DataBase Reference :183232-66-8

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

SR 141716A is a biarylpyrazole compound which has been considered for many years as the prototypical cannabinoid (CB) receptor antagonist. Some very close structural relatives of SR 141716A were recently prepared and tested for their ability to act as antagonists of the CB1 receptor. AM251 is one of these analogs, wherein the p-chloro group attached to the phenyl substituent at C-5 of the pyrazole ring is replaced with a p-iodo group. The resulting compound exhibits slightly better binding affinity for the CB1 receptor with a Ki value of 7.5 nM compound to SR 141716A, which has a Ki value of 11.5 nM. However AM251 is about two-fold more selective for the CB1 receptor when compared to SR 141716A.

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