Volume 19, Issue 3 (July 1974)
Analysis of Old Samples of Cannabis sativa L.
Relatively few phytochemical studies have been conducted on very old samples of Cannabis sativa L., particularly leaf and stem material [1–4]. At least one article  has shown that the fluid extract of marihuana is stable for as long as 40 years. A more recent article  reports on the stability of cannabinoids in stored plant material at different temperatures.