![](https://nthumb.tpgimages.com/mid2_com_img/1339/25706/TOP24751667.jpg)
Caffeine crystals, polarised light micrograph. Found in numerous beverages, such as tea and coffee, caffeine is a bitter, white alkaloid that acts as a stimulant to the central nervous system.
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Details
Creative#:
TOP24751667
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
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N/A
Property Release:
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No
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