Caffeine crystals

Caffeine crystals

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Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Caffeine crystals. Polarised light micrograph (PLM) of crystals of caffeine (1,3,7- trimethylxanthine). Caffeine stimulates the central nervous system increasing alertness and deferring fatigue. It is often contained in analgesic preparations with aspirin or codeine, and it is a diuretic. It occurs in coffee beans, tea leaves & cola nuts. Magnification: x20 at 6x7cm size. x30 at 4x5"

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Keywords: caffeine crystals, chemical, chemistry, compound, compounds, crystal, crystals, drug, organic, pattern, plm, polarised light micrograph, stimulant, trimethylxanthine

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