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The liquid chromatography–mass spectrometry (LCMS) chromatograph of commercial standard vinblastine (A), crude mycelia extract of N.sphaerica isolated from C. roseus plant (B) and crude leaf extract of C. roseus (C) at retention time of 4.91, 4.94 and 5.2 min, respectively. Symbol: Blue line = First fragment ion, Red line = Second fragment ion.
