# Cycloheptadeca-9-en-1-one

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**Safety rating:** UNKNOWN
**CAS number:** 542-46-1
**Category:** flavoring
**FDA GRAS:** no
**Adverse events (FDA AERS):** 0
**FDA recalls:** 0
**Last updated:** 2026-04-02

## Summary

Cycloheptadeca-9-en-1-one (CAS 542-46-1) is a synthetic organic compound used as a flavoring agent in food products. It belongs to a class of cyclic ketones employed to impart specific aromatic and taste characteristics to beverages, confections, and other food applications.

## 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 Cycloheptadeca-9-en-1-one?

Cycloheptadeca-9-en-1-one is a synthetic organic chemical compound classified as a cyclic ketone. Its molecular structure consists of a 17-membered carbon ring with a ketone functional group and one double bond. This compound is produced through chemical synthesis rather than extracted from natural sources, though similar compounds may exist in trace amounts in nature. The chemical is primarily valued for its aromatic properties and is used in the flavor industry to create or enhance specific taste and smell profiles in food and beverage products.

## Common Uses

This flavoring agent is used in the food industry to provide distinctive aromatic notes to various products. Common applications include:

- Confectionery and candy formulations
- Beverages including soft drinks and alcoholic beverages
- Dairy products such as yogurts and flavored milk
- Baked goods and desserts
- Seasoning blends and savory applications

The compound is typically used in very small quantities, measured in parts per million (ppm), as flavoring agents require only minimal amounts to achieve their sensory effects. Formulators select this ingredient based on its specific aromatic characteristics and how it complements other flavoring components in a product.

## Safety Assessment

Cycloheptadeca-9-en-1-one has not received FDA GRAS (Generally Recognized as Safe) status, which means it has not undergone the formal GRAS notification process with the Food and Drug Administration. However, this designation does not indicate the compound is unsafe; rather, it reflects the regulatory pathway and submission status.

The FDA database contains zero reported adverse events associated with this additive and zero recalls attributed to its use. This absence of reported incidents suggests no significant safety concerns have emerged from its use in food products at approved levels.

Like other synthetic flavoring compounds used at minimal levels in food, cycloheptadeca-9-en-1-one is present in final food products at concentrations typically below levels of toxicological concern. The safety of flavoring agents is often assessed based on their chemical class and structural similarity to other approved compounds, as well as consumption estimates based on typical use levels.

## Regulatory Status

In the United States, cycloheptadeca-9-en-1-one may be used as a flavoring agent under the authority of 21 CFR §182.60, which permits use of synthetic flavoring substances and adjuvants not specifically listed elsewhere, provided they meet general safety standards and are used in accordance with good manufacturing practices.

The regulatory status of this compound may vary by country. In the European Union, flavoring substances are regulated under Regulation (EC) No 1334/2008, and approval for use depends on inclusion in the Union List of approved flavoring substances. Manufacturers must verify current regulatory approval in each jurisdiction where their products are marketed.

As a synthetic flavoring agent used in minimal quantities, this compound falls under the category of processing aids and flavorings that typically require lower regulatory scrutiny compared to intentional additives used at higher levels.

## Key Studies

Limited published scientific literature is available specifically on cycloheptadeca-9-en-1-one. Safety assessments for synthetic flavoring agents in this chemical class typically rely on:

- Structural analogy to approved flavoring compounds
- General toxicity data for cyclic ketone compounds
- Estimated daily intake calculations based on typical use levels in food
- Historical use data without reported adverse events

The flavor and fragrance industry maintains confidential safety dossiers on proprietary compounds. Comprehensive safety reviews are typically conducted before commercial introduction, though detailed study results may not be publicly available.

Researchers studying similar cyclic compounds have found that compounds in this structural class generally exhibit low toxicity when used at the concentrations typical in food applications. The absence of reported adverse events and recalls further supports the safety profile of this ingredient in current food use.

## 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. "Cycloheptadeca-9-en-1-one — Safety, regulation, and evidence." https://additivefacts.com/additives/cycloheptadeca-9-en-1-one. Accessed 2026-05-19.