21 CFR 73.1375 - Pyrogallol.

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§ 73.1375 Pyrogallol.
(a) Identity. The color additive pyrogallol is 1,2,3-trihydroxybenzene.
(b) Specifications. Pyrogallol 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:
Melting point, between 130° and 133 °C.
Residue on ignition, not more than 0.1 percent.
Lead (as Pb), not more than 20 p/m (parts per million).
Arsenic (as As), not more than 3 p/m.
(c) Uses and restrictions. Pyrogallol may be safely used in combination with ferric ammonium citrate (as listed in § 73.1025), for coloring plain and chromic catgut sutures for use in general and ophthalmic surgery, subject to the following restrictions:
(1) The dyed suture shall conform in all respects to the requirements of the United States Pharmacopeia XX (1980).
(2) The level of the ferric ammonium citrate-pyrogallol complex shall not exceed 3 percent of the total weight of the suture material.
(3) When the sutures are used for the purposes specified in their labeling, there is no migration of the color additive to the surrounding tissues.
(4) If the suture is a new drug, an approved new drug application, pursuant to section 505 of the act, is in effect for it.
(d) Labeling. The label of the color additive shall conform to the requirements of § 70.25 of this chapter.
(e) Exemption from certification. Certification of this color additive is not necessary for the protection of the public health and therefore batches thereof are exempt from the certification requirements of section 721(c) of the act.
[42 FR 15643, Mar. 22, 1977, as amended at 49 FR 10089, Mar. 19, 1984]

Title 21 published on 2014-04-01

The following are only the Rules published in the Federal Register after the published date of Title 21.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-06-11; vol. 79 # 112 - Wednesday, June 11, 2014
    1. 79 FR 33431 - Listing of Color Additives Exempt From Certification; Spirulina Extract; Confirmation of Effective Date
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      DEPARTMENT OF HEALTH AND HUMAN SERVICES, Food and Drug Administration
      Final rule; confirmation of effective date.
      The effective date for the final rule published April 11, 2014 (79 FR 20095), is confirmed as May 13, 2014.
      21 CFR Part 73

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United States Code

Title 21 published on 2014-04-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 21 CFR 73 after this date.

  • 2014-10-22; vol. 79 # 204 - Wednesday, October 22, 2014
    1. 79 FR 63062 - Colorcon, Inc.; Filing of Color Additive Petition
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      DEPARTMENT OF HEALTH AND HUMAN SERVICES, Food and Drug Administration
      Notice of petition.
      The color additive petition was filed on September 22, 2014.
      21 CFR Part 73