Abstract
6-[6-Deoxy-α-L-mannopyranosyl)-β-L-ribo-hexopyranos-3-ulos-1-yl]-apigenin (cassiaoccidentalin A) was isolated from the plant. This is a very rare flavonoid, having been reported once before in nature. A second flavonoid has been assigned the structure apigenin 6-(2-propenoic acid). This is a new natural product. Protocatechuic acid (3,4-dihydroxybenzoic acid) was also isolated and identified. This is a fairly common compound in nature.
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