Source google image: https://www.researchgate.net/profile/Nguyen_Thao29/publication/277598410/figure/fig2/AS:392139130327047@1470504662255/Extraction-and-isolation-process-of-steroids-1-12-from-D-sa-vignyi.png
Isolation 2+1
Source google image: https://www.researchgate.net/profile/Nguyen_Thao29/publication/277598410/figure/fig2/AS:392139130327047@1470504662255/Extraction-and-isolation-process-of-steroids-1-12-from-D-sa-vignyi.png