%

Etymology
From o/c, from No/c, an abbreviation of.

Symbol

 * 1) The percent; portion of a total of 100.
 * 2) * Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich
 * Decomposition of 4 in the presence of cis-piperylene at room temperature results in the stereocontrolled formation of trans-cycloheptadiene 27 in 90% ee (96% ee at -78 °C).
 * Decomposition of 4 in the presence of cis-piperylene at room temperature results in the stereocontrolled formation of trans-cycloheptadiene 27 in 90% ee (96% ee at -78 °C).

Synonyms

 * , centiuno

Etymology 1
The pronunciation is from

Symbol

 * 1)  percent