C.I. Natural Blue 1
Cas. Nr.: 482-89-3 
EC-Nr: 207-586-9 

Signalword: Warning

H: 373  P: 260-314-501  GHS08

History and application:
19th century
Ancient
A natural colorant extracted from the leaves of the indigo plant.
Can be used for oilpaint, aquarel, acryl and to dye cotton (blue jeans), wool and silk. Gives a steel-blue colour.