Turner CE, Hadley K, Fetterman PS (1973a) Constituents ofCannabis Sativa. VI. Propyl
homologs in samples of known geographical origin. J Pharm Sci 62:1739– 1741
Turner CE, Hadley KW, Fetterman PS, Doorenbos NJ, Quimby MW, Waller C (1973b)
Constituents ofCannabis sativaL. IV: Stability of cannabinoids in stored plant material.
J Pharm Sci 62(10):1601– 1605
Turner CE, Elsohly MA, Boeren EG (1980) Constituents ofCannabis sativaL. XVII. A review of
the natural constituents. J Nat Prod 43(2):169– 234
UNODC (2009) Recommended methods for the identification and analysis of cannabis and
cannabis products. United Nations Office on Drugs and Crime, Vienna
Verwey A, Witte A (1972) A rapid method of preparation of 1-THC by isolation of 1-THC acid
from hashish. Pharmaceutisch Weekblad 107(27):415
Wang M, Wang YH, Avula B, Radwan MM, Wanas AS, van Antwerp J, Parcher J, ElSohly MA,
Khan IA (2016) Quantitative determination of cannabinoids in cannabis using ultra high
performance supercriticalfluid chromatography and diode array/mass spectrometric detection.
J Forensic Sci doi:10.1111/1556-4029
Watanabe K (2005) Cannabinoids and their metabolites. Springer, Drugs and Poisons in Humans,
pp 187– 194
Wollner H, Matchett JR, Levine J, Loewe S (1942) Isolation of a physiologically active
tetrahydrocannabinol from Cannabis sativa resin. J Am Chem Soc 64(1):26– 29
Xiaoyan Wang DM, Searfoss Jody, Telepchak Michael (2016) Determination of cannabinoid
content and pesticide rediues in Cannabis edible beverages. LCGC 34(10):20– 27
Yamauchi T, Shoyama Y, Aramaki H, Azuma T, Nishioka I (1967) Tetrahydrocannabinolic acid, a
genuine substance of tetrahydrocannabinol. Chem Pharm Bull 15:1075– 1076
Yotoriyama M, Ishiharajima E, Kato Y, Nagato A, Sekita S, Watanabe K, Yamamoto I (2005)
Identification and determination of cannabinoids in both commercially available and cannabis
oils stored long term. J Health Sci 51(4):483– 487
Zulfiqar F, Ross SA, Slade D, Ahmed SA, Radwan MM, Ali Z, Khan IA, ElSohly MA (2012)
Cannabisol, a novelD^9 -THC dimer possessing a unique methylene bridge, isolated from
Cannabis sativa. Tetrahedron Lett 53(28):3560– 3562
182 M.M. Radwan et al.