Specific Target Organ Toxicity – Single exposure, category 3
European Hazard Symbols
Harmful (Xn)
Packing Group
3
German water hazard class
1
GHS Signal Word
Warning
RID/ADR
UN 1544 6.1/PG 3
Hazard Class
6.1
Pharmacology Properties
Gene Information
human ... ADORA1(134), PDE4B(5142)
Physical Property
Melting Point
234-236.5 °C(lit.)
Molecule Details
Biochem/physiol Actions A central nervous system stimulant believed to act through adenosine receptors and monoamine neurotransmitters. It is an adenosine receptor antagonist and adenosine 3′,5′-cyclic monophosphate (cAMP) phosphodiesterase inhibitor. Thus, levels of cAMP increase in cells following treatment with caffeine. It has been reported to affect cellular calcium levels, releasing calcium from intracellular stores. It overrides the cell cycle effects of various chemicals such as protease inhibitors, preventing apoptosis; and it has been shown to inhibit cellular DNA repair mechanisms.