# D&C Red No. 6 and D&C Red No. 7; Change in Specification; Confirmation of Effective Date
> **Food and Drug Administration** · Final rule; confirmation of effective date. · Published 2012-09-11 · Effective 2012-08-07 · 77 FR 55693
## Document
- **Document number:** 2012-22296
- **Category:** other
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 77 FR 55693
- **CFR reference:** 21 CFR 74
- **Publication date:** 2012-09-11
- **Effective date:** 2012-08-07
- **HHS docket:** Docket No. FDA-2011-C-0050
## Abstract

The Food and Drug Administration (FDA) is confirming the effective date of August 7, 2012, for the final rule that published in the Federal Register of July 6, 2012 (77 FR 39921) and that revised the requirements for D&C Red No. 6 and D&C Red No. 7 by replacing the current specification for "Ether-soluble matter" with a maximum limit of 0.015 percent for the recently identified impurity 1-[(4- methylphenyl)azo]-2-naphthalenol.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/09/11/2012-22296/dandc-red-no-6-and-dandc-red-no-7-change-in-specification-confirmation-of-effective-date)
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