Botanical Information Senna obtusifolia (L.) H.S.Irwin & Barneby (under development)

Synonyms Cassia obtusifolia L.
Cassia rogeonii Ghesq. Rev.
Cassia tora var. humilis Pers.
Cassia tora var. obtusifolia (L.) Haines
Cassia toroides Raf.
Emelista obtusifolia (L.) Raf.
Senna toroides Roxb.
Common name (en) Chinese senna
Common name (fr) Pistache marron
Common name (hi) चकवड़
Common name (ja) エビスグサ
Common name (pt) Mata-pasto
Common name (vi) Thảo quyết minh
Common name (zh) 決明

Sample preparation Weigh 0.5 g of the powdered sample and place it in a 50-mL conical flask, then add 10 mL of ethanol (70%). Sonicate (90 W) the mixture for 20 min. Filter through a filter paper
Mobile phase n-hexane, isopropanol, formic acid 5:1:0.1 (v/v/v)
Derivatization Spray with 3% of sodium hydroxide in ethanol and heat at 105°C for 2 min