Abstract
The partial separation and quantitation of the components of the urushiol fraction of poison ivy and poison oak are discussed. The urushiol fraction of poison ivy is primarily composed of C 15 side-chain catechol, while the urushiol extract of poison oak is principally the C 17 homolog. The presence of a C 17 homolog in ivy and a C 15 homolog in poison oak urushiol is also detected. Each of these catechol derivatives contain a mixture of congeners which are partially separated by the GLC system used. In each case the tri-olefinic component occurs in greatest abundance and the mono-olefinic congener is least abundant; no saturated material was detected. The compounds were analyzed as trimethylsilyl derivatives and a qualitative analysis was accomplished by GC-MS.
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