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One of the species of commercially available catuaba was identified as Anemopaegma arvense by comparison of its micromorphological characteristics and TLC profile with six species of authenticated plants that are commonly referred to as catuaba. The bioactivity-guided fractionation of the ethyl acetate extract of the stem bark of this catuaba sample resulted in the isolation of one new (1, catuabin A) and three known flavan-3-ol type phenylpropanoids, cinchonain la (2), cinchonain ha (3) , anddoi:10.1055/s-2007-981563 pmid:17642036 fatcat:jo36plj2pvakhctqj7x6ifys5e