Catalog No. Size PriceQuantity
M11708-2 Contact for quotation $100
M11708-10 Contact for quotation $100


AMG-548, an orally active and selective p38α inhibitor (Ki=0.5 nM), shows slightly selective over p38β (Ki=36 nM) and >1000 fold selective against p38γ and p38δ. AMG 548 is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50=3 nM). AMG-548 inhibits Wnt signaling by directly inhibiting Casein kinase 1 isoforms δ and ε.

Product information

CAS Number: 864249-60-5

Molecular Weight: 461.56

Formula: C29H27N5O

Chemical Name: 2-{[(2S)-2-amino-3-phenylpropyl]amino}-3-methyl-5-(naphthalen-2-yl)-6-(pyridin-4-yl)-3, 4-dihydropyrimidin-4-one

Smiles: CN1C(=O)C(=C(N=C1NC[C@@H](N)CC1C=CC=CC=1)C1C=CN=CC=1)C1=CC2=CC=CC=C2C=C1


InChi: InChI=1S/C29H27N5O/c1-34-28(35)26(24-12-11-21-9-5-6-10-23(21)18-24)27(22-13-15-31-16-14-22)33-29(34)32-19-25(30)17-20-7-3-2-4-8-20/h2-16,18,25H,17,19,30H2,1H3,(H,32,33)/t25-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

AMG-548 shows >1000 fold selective against p38γ (Ki=2600 nM) and p38δ (ki=4100 nM). AMG-548 has an modest selectivity against JNK2 (ki=39 nM) and JNK3 (ki=61 nM). AMG-548 is also extremely potent in the inhibition of whole blood LPS stimulated TNFa (IC50=3 nM) and IL1b (IC50=7 nM) as well as TNFa induced IL-8 (IC50=0.7 nM) and IL-1b induced IL-6 (IC5050=1.3 nM) in human whole blood. AMG-548 (10 μM) inhibits the hDvl2 shift.

In Vivo:

AMG-548 has rat F of 62% and dog F of 47%. The t1/2 is 4.6 hours in rats and 7.3 hours in dogs.


  1. Lee MR, et al. MAP kinase p38 inhibitors: clinical results and an intimate look at their interactions with p38alphaprotein. Curr Med Chem. 2005;12(25):2979-94.
  2. Verkaar F, et al. Inhibition of Wnt/β-catenin signaling by p38 MAP kinase inhibitors is explained by cross-reactivity with casein kinase Iδ/ɛ. Chem Biol. 2011 Apr 22;18(4):485-94.

Products are for research use only. Not for human use.

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