6-methyl octahydro-4,7-methanoindene-5-carbaldehyde

6-methyl octahydro-4,7-methanoindene-5-carbaldehyde is a synthetic organic compound classified chemically as an aldehyde. It presents as a colorless to pale liquid notable for its aldehydic odor characteristics, which are integral to its use in fragrance compositions. The compound belongs to the class of methanoindene derivatives, featuring a bicyclic hydrogenated indene core with a functional aldehyde group at the 5-position and a methyl substitution at the 6-position. Its distinct scent profile offers sharp, fresh aldehydic notes contributing texture and complexity in perfumery. Known synonyms include 6-methyl-octahydro-4,7-methano-indene-5-carbaldehyde and 6-methyloctahydro-4,7-methanoindene-5-carbaldehyde. This substance is catalogued in chemical repositories such as PubChem. It is typically produced via multi-step organic synthesis starting from hydrogenated indene derivatives, rather than being directly isolated from natural sources.

This compound does not naturally occur in biological systems but is synthetically manufactured for specialized applications. Its principal use is as a fragrance agent, imparting aldehydic notes to perfumes, colognes, and other scented products. The aldehydic character enhances brightness and lends a clean, fresh dimension valued in olfactory formulations. Usage recommendations are governed by the IFRA Code of Practice (Global) to ensure safety in consumer products. According to IFRA guidelines, this compound is designated for fragrance use only and is not approved for flavoring applications. While specific metabolic or ecotoxicological data are limited, its controlled industrial use aligns with standard fragrance regulation protocols.

6-methyl octahydro-4,7-methanoindene-5-carbaldehyde exhibits physical and chemical properties shaped by its bicyclic saturated hydrocarbon structure and aldehyde functionality. The molecular framework provides moderate chemical stability while the aldehyde group is responsible for its characteristic reactive and sensory attributes. Its partition coefficient and volatility influence its formulation behavior, enabling it to disperse effectively in solvent systems and fragrance matrices. The compound’s physical state at ambient temperature is liquid, facilitating blending and dosing precision. Its aldehydic nature requires consideration in formulation to avoid unwanted secondary reactions, such as oxidation. Overall, the balance of structural rigidity and functional group reactivity defines its utility in fragrance chemistry.

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Safety information

Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
fragrance agents
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for 6-methyl octahydro-4,7-methanoindene-5-carbaldehyde flavor usage levels up to:
	not for flavor use.

Safety references

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