# 4-methyl-2,6-dimethoxyphenol

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> Markdown URL: https://additivefacts.com/additives/4-methyl-2-6-dimethoxyphenol.md

**Safety rating:** UNKNOWN
**CAS number:** 6638-05-7
**Category:** flavoring
**FDA GRAS:** no
**Adverse events (FDA AERS):** 0
**FDA recalls:** 0
**Last updated:** 2026-04-02

## Summary

4-methyl-2,6-dimethoxyphenol is a synthetic flavoring compound used to provide phenolic and smoky flavor notes in food products. Despite its GRAS status not being established by the FDA, it has been used in limited food applications with no reported adverse events or recalls.

## Regulatory status

| Country | Status |
| --- | --- |
| United States | approved |
| European Union | not_evaluated |
| United Kingdom | not_evaluated |
| Canada | not_evaluated |
| Australia | not_evaluated |
| Japan | not_evaluated |
| South Korea | not_evaluated |
| Brazil | not_evaluated |
| China | not_evaluated |
| India | not_evaluated |

## Detailed analysis

## What is 4-methyl-2,6-dimethoxyphenol?

4-methyl-2,6-dimethoxyphenol (CAS Number: 6638-05-7) is a synthetic organic compound belonging to the phenolic family of flavor chemicals. Its chemical structure consists of a benzene ring with a methyl group and two methoxy groups attached at specific positions. This compound is classified as a flavoring agent or adjuvant and is used in very small quantities to impart specific taste and aroma characteristics to food products.

## Common Uses

This flavoring compound is used primarily in the food industry to provide phenolic, smoky, and complex flavor profiles. It appears in products where such characteristics are desired, though its use is limited due to its non-GRAS regulatory status in the United States. The compound may be encountered in certain specialty foods, seasonings, or processed meat products where smoky or wood-derived flavor notes are desired. As with most synthetic flavoring agents, the actual concentration used in finished food products is typically very low, often measured in parts per million.

## Safety Assessment

The FDA has not granted Generally Recognized as Safe (GRAS) status to 4-methyl-2,6-dimethoxyphenol, meaning it does not fall into the category of additives presumed safe through common use or scientific consensus. However, this lack of GRAS designation does not necessarily indicate the substance is unsafe—rather, it reflects that sufficient evidence meeting FDA's specific criteria has not been established or submitted.

The compound has generated zero reported adverse events in the FDA's adverse event reporting system and has been associated with zero food recalls. This absence of safety signals suggests that any use to date has not resulted in documented consumer health complaints or identified food safety issues.

As a phenolic compound, 4-methyl-2,6-dimethoxyphenol shares structural similarities with other phenolic flavor compounds that have been more extensively studied. Phenolic compounds generally undergo metabolism in the body through various enzymatic pathways. The specific toxicological profile of this particular compound would require dedicated safety studies to fully characterize.

## Regulatory Status

In the United States, 4-methyl-2,6-dimethoxyphenol is not on the FDA's GRAS list and does not have an established FDA regulation for use as a food additive. This means any use in food products would require either: (1) a Food Additive Petition submitted to and approved by the FDA, or (2) a GRAS Notice providing evidence supporting its safety and common knowledge status.

The compound may have regulatory acceptance or different status in other countries, including European Union member states or other jurisdictions, but this would require separate verification through those regulatory authorities such as EFSA (European Food Safety Authority).

## Key Studies

Limited published safety data is available specifically for 4-methyl-2,6-dimethoxyphenol in the scientific literature. The absence of extensive clinical or toxicological studies is notable, particularly compared to more widely-used flavoring agents. Any manufacturer seeking to use this compound would need to conduct or reference appropriate toxicological studies, including absorption, distribution, metabolism, and excretion studies, as well as acute and chronic toxicity assessments.

The lack of adverse events and recalls despite some degree of market use suggests the compound has not presented obvious safety concerns in practical application, but this does not replace the need for comprehensive safety evaluation data that would be expected by regulatory authorities for formal approval.

## Sources

- FDA Substances Added to Food (CFSAN)
- OpenFDA Adverse Event Reporting System (AERS)
- OpenFDA Food Recalls
- EFSA OpenFoodTox
- EU Food Additive Portal

## Citation

Additive Facts. "4-methyl-2,6-dimethoxyphenol — Safety, regulation, and evidence." https://additivefacts.com/additives/4-methyl-2-6-dimethoxyphenol. Accessed 2026-05-19.