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A2846 Sigma

A-134974 dihydrochloride hydrate

≥98% (HPLC), solid

Synonym: N7-[(1′R,2′S,3′R,4′S)-2′,3′-dihydroxy-4′-aminocyclopentyl]-4-amino-5-iodopyrrolopyrimidine dihydrochloride hydrate

  • Empirical Formula (Hill Notation) C11H14IN5O2 · 2HCl · xH2O

  • Molecular Weight 448.09 (anhydrous basis)

  •  MDL number MFCD08692561

  •  PubChem Substance ID 24890697




5 mg in glass bottle

Legal Information

Sold under license from Abbott Laboratories.

Biochem/physiol Actions

A-134974 is a novel and selective adenosine kinase (AK) inhibitor with IC50 = 60 pM. Systemic A-134974 (i.p.) dose dependently reduced hyperalgesia (ED50= 1 μmol/kg) and at higher doses, reduced locomotor activity (ED50 = 16 μmol/kg). Administration of A-134974 intrathecally (i.t.) was more potent (ED50= 6 nmol) at producing antihyperalgesia than delivering the compound by intracerebralventricular (ED50 = 100 nmol, i.c.v.) or intraplantar (ED50 >300 nmol) routes. In contrast, i.c.v. administration of A-134974 was more effective in reducing locomotor activity than i.t. administration (ED50 values were 1 and >100 nmol, respectively). Increasing the pretreatment time for i.t.-delivered A-134974 caused a greater reduction in locomotor activity (ED50= 10 nmol). This was due to diffusion of A-134974 (i.t.) to supraspinal sites. These data demonstrate that the novel AK inhibitor A-134974 potently reduces thermal hyperalgesia primarily through interactions with spinal sites, whereas its ability to depress locomotor activity is predominantly mediated by supraspinal sites.

Features and Benefits

This compound was developed by Abbott. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

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Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles


Adenosine Receptors

There are four known subtypes of adenosine receptors, referred to as A1, A2A, A2B and A3. All are members of the superfamily of G protein-coupled receptors and each bears the characteristic motif of ...
Keywords: Atomic absorption spectroscopy, Cancer, Cardiovascular, Diabetes, Diseases, Gene expression, Inflammation, Magnetic resonance spectroscopy, Neurotransmitters, Substitutions, Transduction

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