Code of Federal Regulations Title 21. Food and Drugs § 21.74.340 FD&C Red No. 40

(a) Identity.

(b) Specifications. FD & C Red No. 40 shall conform to the following specifications and shall be free from impurities other than those named to the extent that such other impurities may be avoided by good manufacturing practice:

Sum of volatile matter (at 135 °C.) and chlorides and sulfates (calculated as sodium salts), not more than 14.0 percent.

Water-insoluble matter, not more than 0.2 percent.

Higher sulfonated subsidiary colors (as sodium salts), not more than 1.0 percent.

Lower sulfonated subsidiary colors (as sodium salts), not more than 1.0 percent.

Disodium salt of 6–hydroxy–5–[(2–methoxy–5–methyl–4–sulfophenyl) azo] –8–(2–methoxy–5–methyl–4–sulfophenoxy)–2–naphthalenesulfonic acid, not more than 1.0 percent.

Sodium salt of 6–hydroxy–2–naphthalenesulfonic acid (Schaeffer's salt), not more than 0.3 percent.

4–Amino–5–methoxy-o-toluenesulfonic acid, not more than 0.2 percent.

Disodium salt of 6,6′–oxybis (2–naphthalene–sulfonic acid), not more than 1.0 percent.

Lead (as Pb), not more than 10 parts per million.

Arsenic (as As), not more than 3 parts per million.

Total color, not less than 85.0 percent.

(c) Uses and restrictions. FD&C Red No. 40 may be safely used for coloring foods (including dietary supplements) generally in amounts consistent with good manufacturing practice except that 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.

(d) Labeling. The label of the color additive and any lakes or mixtures prepared therefrom intended solely or in part for coloring purposes shall conform to the requirements of § 70.25 of this chapter.

(e) Certification. All batches of FD&C Red No. 40 and lakes thereof shall be certified in accordance with regulations in part 80 of this chapter.