| Location | Main Location |
| Location Code | 204 Flammable 1 |
a synthetic organic compound used primarily as a blue colorant for processed foods, medications, dietary supplements, and cosmetics. It has the appearance of a blue powder and is soluble in water and glycerol with a maximum absorption at about 628 nanometers. It is one of the oldest FDA-approved color additives and is generally considered nontoxic and safe.