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hydroxycitronellal residue

Hydroxycitronellal residue is a floral-scented compound used primarily as a fragrance agent with a fresh lily note and moderate odor strength.

General Material Description

Hydroxycitronellal residue is a chemical compound that belongs to the class of fragrance ingredients, often utilized for its floral scent characteristics. It presents as a substance associated with fresh, sweet lily and citronella-like odor notes that provide moderate intensity and long-lasting substantivity. Known also as dehydroxycitronellal residues or hydroxy residue, it is referenced under CAS numbers 72968-30-0 and 69102-96-1. Detailed chemical data about this compound can be found via PubChem. It is typically derived from citronellal-related materials during fragrance synthesis processes. Its use concentrates on imparting floral nuances in perfumery and cosmetic applications.

Occurrence, Applicability & Potential Uses

Hydroxycitronellal residue occurs mainly as a derivative in fragrance compositions, contributing a fresh floral aroma reminiscent of lily and citronella. Primarily applied as a fragrance agent, it enhances olfactory profiles in perfumes and scented products. Its characteristic medium odor strength and prolonged substantivity—lasting approximately 400 hours at full concentration—make it valuable in perfumery. Usage guidelines for this compound are informed by standards such as the IFRA Code of Practice (Global), which provide recommendations to ensure safe inclusion levels in consumer goods. It is important to note that it is designated for fragrance use only and is not approved as a flavor additive.

Physico-Chemical Properties Summary

Hydroxycitronellal residue exhibits solubility characteristics that favor alcohol, in which it dissolves readily. It has an estimated water solubility around 3264 mg/L at 25 °C, though it is generally considered insoluble in pure water. The compound has a relatively high flash point measured at 200 °F (approximately 93 °C), indicating moderate volatility and flammability under standard conditions. These physicochemical properties influence its handling, formulation, and stability within fragranced products, affecting evaporation rates and persistence. Its moderate solubility supports compatibility with common fragrance solvents and carriers.

FAQ

What is hydroxycitronellal residue and how is it used?
Hydroxycitronellal residue refers to chemical derivatives related to hydroxycitronellal, used primarily as fragrance agents to impart a fresh floral scent similar to lily and citronella. This compound features a medium odor strength and offers long-lasting aroma substantivity, which makes it suitable for perfumery and scented consumer products. It is not employed as a flavor additive but is valued for its olfactory properties within fragrance formulations.
Where does hydroxycitronellal residue occur and what are its key physical properties?
This compound typically occurs as a residue formed during fragrance ingredient production or degradation processes involving hydroxycitronellal or related materials. It is soluble in alcohol and exhibits low water solubility at room temperature, with an estimated solubility of 3264 mg/L at 25 °C. The flash point near 93 °C (200 °F) suggests moderate volatility and influences its safe use and storage. These properties affect how it integrates into fragrance blends and the persistence of its aroma.
What regulations or safety assessments pertain to hydroxycitronellal residue?
Hydroxycitronellal residue has undergone evaluation under fragrance safety standards such as the IFRA Code of Practice (Global), which provides guidelines for its appropriate use levels in fragranced products. No specific hazard classifications or precautionary statements are assigned under OSHA regulations, reflecting a low hazard profile based on available data. It is important to follow industry-recognized safety assessments and recommended usage to ensure compliance and consumer safety.

US / EU / FDA / JECFA / FEMA / Scholar / Patents

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Other Information

HMDB (The Human Metabolome Database):Search
Wikipedia:View

General Material Information

Trivial Name hydroxycitronellal residue
CAS Number 72968-30-0
CAS Number 69102-96-1
ECHA Number 277-134-3
FDA UNII Search
Synonyms
  • dehydroxycitronellal residues
  • hydroxy residue

PhysChem Properties

Material listed in food chemical codex No
Flash Point TCC Value 93.33 °C TCC
Solubility
alcohol Yes
water, 3264 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Floral
fresh, floral, sweet, lily, citronella
Odor strength medium
Substantivity 400 hour(s) at 100.00 %
General comment At 100.00 %. fresh floral sweet lily citronella oil

Potential Uses

Applications
Odor purposes Lily

Safety Information

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
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for hydroxycitronellal residue flavor usage levels up to:
not for flavor use.

Safety references

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):72968-30-0
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
Chemidplus:072968300
Chemidplus:069102961