Propolis recently been isolated from red propolis, and prenylated acids such as 4-hydroxy-3,5-diprenyl cinnamic acid have been documented. An analysis of propolis from Henan, China found sinapinic acid, isoferulic acid, caffeic acid, and chrysin, with the first three compounds demonstrating antibacterial properties. Also, Brazilian red propolis, largely derived from "Dalbergia ecastaphyllum" plant resin, has high relative percentages of the isoflavonoids 3-hydroxy-8,9-dimethoxypterocarpan and medicarpin. Other flavonoids commonly present include galangin and pinocembrin. Caffeic acid phenethyl ester (CAPE) is also a component of some varieties of propolis from New Zealand. Occasionally, worker bees will even gather various caulking compounds of human manufacture, when
Gorilla Glue only to furniture manufacturers. The company began selling Gorilla Glue to consumers in 1999. The company was purchased by Lutz Tool Company which later changed its name to The Gorilla Glue Company. The company is privately owned by the Ragland family. In late 2016, the company relocated from its Cincinnati location on Red Bank Road to its current location in Sharonville, a suburb of Cincinnati. "Original" Gorilla Glue works on wood, stone, foam, metal, ceramic, glass and other materials. It expands slightly while drying, sometimes enough to cause "squeeze-out", which foams up in air. The original is also available in