A change in the state of matter, such as from a solid to a liquid or a liquid to a gas, often accompanied by changes in the material's properties.
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5-AMINO-2,3,3-TRIMETHYL-3H-INDOLE
Boc-(Val-Pro-Gly-Val-Gly)2-OBzl
4-n-butoxybenzylidene-4'-chloroaniline
