text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

CAS RN: 183232-66-8 | Product Number: A3151

AM 251

Purity: >97.0%(HPLC)
  • 1-(2,4-Dichlorophenyl)-5-(4-iodophenyl)-4-methyl-N-(piperidin-1-yl)-1H-pyrazole-3-carboxamide
€ 134,00
5   ≥20 
€ 488,00
1   ≥20 

*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).

Product Number A3151
Purity / Analysis Method >97.0%(HPLC)
Molecular Formula / Molecular Weight C__2__2H__2__1Cl__2IN__4O = 555.24  
Physical State (20 deg.C) Solid
Storage Temperature <0°C
Condition to Avoid Heat Sensitive
CAS RN 183232-66-8
Reaxys Registry Number 7780333
PubChem Substance ID 354335179
MDL Number


Appearance White to Light yellow powder to crystal
Purity(HPLC) min. 97.0 area%
Elemental analysis(Nitrogen) 9.60 to 10.60 %
Properties (reference)
Melting Point 196 °C
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
Transport Information:
HS Number 2933399990
AM-251: A Cannabinoid CB1 Receptors (CB1Rs) Antagonist

AM-251 is a cannabinoid CB1 receptors (CB1Rs) antagonist. In areas of the central nervous system (CNS), CB1 receptors have been implicated in regulation of mood and food intake. Reportedly, CB1 agonists increase food intake while CB1 receptor antagonists reduce food intake. AM-251, a CB1 receptor antagonist, have been shown to antidepressant-like and anorectic effects in rats. (The product is for research purpose only.)


Structure-Activity Relationships of Pyrazole Derivatives as Cannabinoid Receptor Antagonists

R. Lan, Q. Liu, P. Fan, S. Lin, S. R. Fernando, D. McCallion, R. Pertwee, A. Makriyannis, J. Med. Chem. 1999, 42, 769.

Antiobesity effects of chronic cannabinoid CB1 receptor antagonist treatment in diet-induced obese mice

A. L. Hildebrandt, D. M. Kelly-Sullivan, S. C. Black, Eur. J. Pharmacol. 2003, 462, 125.

Antidepressant-like and anorectic effects of the cannabinoid CB1 receptor inverse agonist AM251 in mice

L. P. Shearman, K. M. Rosko, R. Fleischer, J. Wang, S. Xu, X. S. Tong, B. A. Rocha, Behav. Pharmacol. 2003, 14, 573

Inverse agonism and neutral antagonism at cannabinoid CB1 receptors (a review)

R. G. Pertwee, Life Sci. 2005, 76, 1307.

Pharmacological actions of cannabinoids (a review)

R. G. Pertwee, Handb. Exp. Pharmacol. 2005, 168, 1.

PubMed Literature

Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.

The requested SDS is not available.

Please Contact Us for more information.

C of A & Other Certificates
Please enter Lot Number Incorrect Lot Number is entered
Analytical Charts
Please enter Lot Number Incorrect Lot Number is entered

The requested analytical chart is not available. Sorry for the inconvenience.

Other Documents