100.0 MB (871.7 KB compressed)
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47.8 x 52.6 cm ⏐ 18.8 x 20.7 in (300dpi)
GREG WILLIAMS / SCIENCE PHOTO LIBRARY GREG WILLIAMS / SCIENCE PHOTO LIBRARY
Methylphenidate, better known as Ritalin, is a central nervous system stimulant known primarily as a medication for ADHD. Atoms are represented as rods and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue) and oxygen (red).
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