Some chemical constituents of the leaves of Cassia nigricans Vahl
R. G. Ayo1*, J. O. Amupitan2, I. G. Ndukwe2 and O. T. Audu2
1Samaru College of Agriculture, Ahmadu Bello University, Zaria, Nigeria.
2Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria
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