最終更新日：2024/07/31
Phthalonitrile is a chemical compound used in the production of dyes and pigments.
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Phthalonitrile is a chemical compound used in the production of dyes and pigments.
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Phthalonitrile is a chemical compound used in the production of dyes and pigments.
Phthalonitrile is a chemical compound used in the production of dyes and pigments.
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