# Listing of Color Additives Exempt From Certification; Astaxanthin Dimethyldisuccinate
> **Food and Drug Administration** · Final rule. · Published 2009-11-05 · Effective 2009-12-08 · 74 FR 57248
## Document
- **Document number:** E9-26524
- **Category:** fda-food
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 74 FR 57248
- **CFR reference:** 21 CFR 73
- **Publication date:** 2009-11-05
- **Effective date:** 2009-12-08
- **HHS docket:** Docket No. FDA-2007-C-0044
## Abstract

The Food and Drug Administration (FDA) is amending the color additive regulations to provide for the safe use of astaxanthin dimethyldisuccinate as a color additive in the feed of salmonid fish to enhance the color of their flesh. This action is in response to a petition filed by DSM Nutritional Products, Inc.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/11/05/E9-26524/listing-of-color-additives-exempt-from-certification-astaxanthin-dimethyldisuccinate)
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