Assertion: alizarin | /r/HasProperty | purchased
Facets:
value: from sigma-aldrich
type: LOCATION
Source sentences:
text: Alizarin (dye content 97%) and purpurin (dye content 90%) were purchased from Sigma-Aldrich, and lucidin and rubiadin were obtained from the laboratory of natural product collection at the Donald Danforth Plant Science Center.