[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: 21CFR74.1260]

[Page 399-400]
 
                        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 B_Drugs
 
Sec.  74.1260  D&C Orange No. 10.

    (a) Identity. (1) The color additive D&C Orange No. 10 is a mixture 
consisting principally of 4',5'-diiodofluorescein, 2',4',5'-
triiodofluorescein, and 2',4',5',7'-tetraiodofluorescein.
    (2) Color additive mixtures for drug use made with D&C Orange No. 10 
may contain only those diluents listed in this subpart as safe and 
suitable for use in color additive mixtures for coloring externally 
applied drugs.
    (b) Specifications. D&C Orange No. 10 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 [deg]C) and halides and sulfates 
(calculated as sodium salts), not more than 8 percent.
Insoluble matter (alkaline solution), not more than 0.5 percent.
Phthalic acid, not more than 0.5 percent.
2-[3',5'-Diiodo-2',4'-dihydroxybenzoyl] benzoic acid, not more than 0.5 
percent.
Fluorescein, not more than 1 percent.
4'-Iodofluorescein, not more than 3 percent.
2',4'-Diiodofluorescein and 2',5'-diiodofluorescein, not more than 2 
percent.
2',4',5'-Triiodofluorescein, not more than 35 percent.
2',4',5',7'-Tetraiodofluorescein, not more than 10 percent.
4',5'-Diiodofluorescein, not less than 60 percent and not more than 95 
percent.
Lead (as Pb), not more than 20 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 92 percent.

    (c) Uses and restrictions. D&C Orange No. 10 may be safely used for 
coloring externally applied drugs in amounts

[[Page 400]]

consistent with good manufacturing practice.
    (d) Labeling requirements. The label of the color additive and any 
mixtures prepared therefrom intended solely or in part for coloring 
purposes shall conform to the requirements of Sec.  70.25 of this 
chapter.
    (e) Certification. All batches of D&C Orange No. 10 shall be 
certified in accordance with regulations in part 80 of this chapter.

[46 FR 18953, Mar. 27, 1981]