(a) Identity.

1. (1) The color additive is β-apo-8′-carotenal.
2. (2) Color additive mixtures for food use made with β-apo-8′-carotenal may contain only diluents that are suitable and that are listed in this subpart as safe in color additive mixtures for coloring foods.

(b) Specifications. β-Apo-8′-carotenal shall conform to the following specifications:

Physical state, solid. 1 percent solution in chloroform, clear. Melting point (decomposition), 136 °C.-140 °C. (corrected). Loss of weight on drying, not more than 0.2 percent. Residue on ignition, not more than 0.2 percent. Lead (as Pb), not more than 10 parts per million. Arsenic (as As), not more than 1 part per million. Assay (spectrophotometric), 96-101 percent.

(c) Uses and restrictions. The color additive β-apo-8′-carotenal may be safely used for coloring foods generally, subject to the following restrictions:

1. (1) The quantity of β-apo-8′-carotenal does not exceed 15 milligrams per pound of solid or semisolid food or 15 milligrams per pint of liquid food.
2. (2) It may not be used to color foods for which standards of identity have been promulgated under section 401 of the act unless added color is authorized by such standards.