Appearance: Dull red powder or granular

Assay: 90%~98% by HPLC

Source: 1.Natural from leaf or root of Indigofera tinctora L, Baphicacanthus cusia Brem, Isatis tinctoria L, Couroupita guianensis Aubl etc.

2.Chemical synthesis

Test Standard: CP2020

CAS: 479-41-4

M.F: C16H10N2O2

M.W: 262.26

Other test details , please email us for COA.

Packing: 25KG/drum or 1KG/bag

Shelf time: 2years