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CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER A—GENERAL (parts 1 to 99) > PART 74—LISTING OF COLOR ADDITIVES SUBJECT TO CERTIFICATION > SUBPART D—Medical Devices (§74.3045 to §74.3710) > 74.3106—D&C Blue No. 6.

CFR

74.3106—D&C Blue No. 6.

(a) Identity. The color additive D&C Blue No. 6 is principally [Δ 2,2′ -biindoline]-3,3′ dione (CAS Reg. No. 482-89-3).
(b) Specifications. D&C Blue No. 6 shall conform to the following specifications and shall be free from impurities other than those named to the extent that such impurities may be avoided by good manufacturing practice:
Volatile matter at 135 °C (275 °F), not more than 3 percent.
Matter insoluble in N,N- dimethylformamide, not more than 1 percent.
Isatin, not more than 0.3 percent.
Anthranilic acid, not more than 0.3 percent.
Indirubin, not more than 1 percent.
Lead (as Pb), not more than 10 parts per million.
Arsenic (as As), not more than 3 parts per million.
Mercury (as Hg), not more than 1 part per million.
Total color, not less than 95 percent.
(c) Uses and restrictions. (1) D&C Blue No. 6 may be safely used at a level—
(i) Not to exceed 0.2 percent by weight of the suture material for coloring polyethylene terephthalate surgical sutures for general surgical use;
(ii) Not to exceed 0.25 percent by weight of the suture material for coloring plain or chromic collagen absorbable sutures for general surgical use;
(iii) Not to exceed 0.5 percent by weight of the suture material for coloring plain or chromic collagen absorbable sutures for ophthalmic surgical use;
(iv) Not to exceed 0.5 percent by weight of the suture material for coloring polypropylene surgical sutures for general surgical use; and
(v) Not to exceed 0.5 percent by weight of the suture material for coloring polydioxanone synthetic absorbable sutures for ophthalmic and general surgical use.
(2) Authorization for these uses shall not be construed as waiving any of the requirements of sections 510(k), 515, and 520(g) of the Federal Food, Drug, and Cosmetic Act with respect to the medical device in which the color additive is used.
(d) Labeling. The label of the color additive shall conform to the requirements of § 70.25 of this chapter.
(e) Certification. All batches of D&C Blue No. 6 shall be certified in accordance with regulations in part 80 of this chapter.

Code of Federal Regulations

[49 FR 29956, July 25, 1984; 49 FR 34447, Aug. 31, 1984, as amended at 50 FR 30698, July 29, 1985]
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