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1. US20170158623 - Xylylene dicarbamate, method for producing xylylene diisocyanate, xylylene diisocyanate, and method for reserving xylylene dicarbamate

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[ EN ]


1. Xylylene dicarbamate containing:
impurities represented by formulas (1) to (4) below at a ratio of less than 100 ppm as a total amount thereof on a mass basis

in the above-described formulas (1) to (4), R represents a monovalent hydrocarbon group.