Assertion: pyrimidine | /r/HasAspect | a chloro group
Facets:
Source sentences:
text: In the manufacturing method, moreover, a pyrimidine having a halogen atom such as a chloro group substituted at a different position, for example, 2,4,5-trichloropyrimidine, may be used instead of 2,4,6-trichloropyrimidine.