FD&C Blue No.1
Brillant blue FCF,
Brilliant blue FCF,
CI 42090,
CI42090,
FD&C Blue #1,
Food Blue 2,
Blue 1,
Blue 1 Lake,
Acid blue 9,
Erioglaucine A
Formula: C37H34N2Na2O9S3
Molecular Weight: 792.9
Cas No:3844-45-9; 2650-18-2; 37307-56-5
Cosmetic Colorant; Hair Dyeing

等同 CI 42090
The safety of Blue No.1 varies based on how it is used, it is completely safe for topical use in beauty products.
Product contain this ingredient