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[Code of Federal Regulations]
[Title 21, Volume 1]
[Revised as of April 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR74.3106]

[Page 422]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                                SERVICES
 
PART 74 LISTING OF COLOR ADDITIVES SUBJECT TO CERTIFICATION--Table of Contents
 
                        Subpart D Medical Devices
 
Sec.  74.3106  D&C Blue No. 6.

    (a) Identity. The color additive D&C Blue No. 6 is principally 
[[Delta]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 [deg]C (275 [deg]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 Sec.  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.

[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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