Chemical examination of the petroleum and chloroform extracts of the roots of Tephrosia spinosa has yielded two new chalcones, spinochalcones A and B, in addition to the known chalcone flemistrictin A.
Hossain, M. Amzad; Salehuddin, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1999, vol. 38, # 5, p. 593 - 595