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earthy indane
Earthy indane is a fragrance compound known for its medium-strength floral and earthy odor, primarily used in perfumery as a topnote agent.
General Material Description
Earthy indane, chemically recognized as 2,3-Dihydro-1-methoxy-1H-indene, is an organic compound with molecular formula C10H12O. It manifests as a colorless liquid featuring a distinctive floral and earthy odor profile, which includes herbal and mildly minty notes. Commonly known by the trivial name phloralid, this compound is classified among fragrance ingredients primarily utilized for its scent characteristics in perfumery. It is structurally characterized as an indane derivative with a methoxy substituent. Earthy indane is typically synthesized or sourced via organic chemical processes, often originating from aromatic hydrocarbon derivatives. Relevant chemical data on earthy indane can be found through authoritative sources such as PubChem to support formulation and safety assessment efforts.
Occurrence, Applicability & Potential Uses
Earthy indane does not commonly occur naturally in significant amounts but is synthetically manufactured for use mainly in fragrance applications. It is valued for imparting floral, chypre, and herbal notes to perfumes and personal care products. The compound plays a role in creating complex scent accords, contributing subtle earthiness and floral nuances to topnotes in formulations. Its application also covers oriental and rose-inspired fragrance blends. Regulatory acknowledgment under the IFRA (Global) guidelines informs safe usage levels, with limitations recommended to maintain consumer safety and product quality during fragrance development.
Physico-Chemical Properties Summary
Earthy indane exhibits physical properties conducive to fragrance formulation, including a boiling point range from 214 to 216°C at atmospheric pressure and a flashpoint estimated at 185°F (approximately 85°C). Its specific gravity at 20°C ranges between 1.021 and 1.031, and refractive index values lie between 1.527 and 1.533 at the same temperature, reflecting its liquid state density and optical properties respectively. Its vapor pressure is low (0.201 mmHg at 25°C), supporting its moderate volatility suitable for sustained scent release. The estimated logP value of around 1.9 suggests moderate lipophilicity, influencing solubility and partitioning behavior in fragrance bases. Earthy indane dissolves in various solvents including alcohol, diethyl phthalate, and dipropylene glycol, but shows limited or negligible solubility in water. Stability assessments indicate no significant discoloration or degradation in most media, rendering it reliable during storage and use in formulations.
FAQ
What is earthy indane and what are its main characteristics?
Earthy indane is a chemical compound used primarily as a fragrance ingredient. Also known by its trivial name phloralid and systematic name 2,3-Dihydro-1-methoxy-1H-indene, it has a molecular formula of C10H12O and exhibits a medium-strength floral and earthy aroma. It is a colorless liquid notable for its floral, minty, and herbal scent notes and functions mostly as a topnote in fragrance compositions.
How is earthy indane used and where is it applied?
Earthy indane is utilized in the fragrance industry to add complexity to perfumes and personal care products. It contributes floral, chypre, herbal, and rose facets primarily in topnote positions. Although not naturally abundant, it is synthetically produced and incorporated into various aromatic blends to achieve desired scent profiles. The compound’s physical properties support its use in formulations requiring moderate volatility and compatibility with commonly used solvents.
What regulations and safety considerations apply to earthy indane?
Earthy indane is subject to safety recommendations by the IFRA (International Fragrance Association) on a global scale, which sets usage limits in fragrance concentrates to ensure consumer safety. It has no identified critical hazard classifications under OSHA HCS and does not pose significant hazards when handled properly. Precautionary advice includes avoiding contact with skin and eyes and keeping it out of children’s reach. Although not approved for flavor use, it is considered generally safe within established fragrance concentration limits.
US / EU / FDA / JECFA / FEMA / Scholar / Patents
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Other Information
| (IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
| Videos: | The Periodic Table of Videos |
| tgsc: | Atomic Weights use for this web site |
| (IUPAC): | Periodic Table of the Elements |
| HMDB (The Human Metabolome Database): | Search |
| Export Tariff Code: | 2914.39.9000 |
| ChemSpider: | View |
| Wikipedia: | View |
General Material Information
| Preferred name | earthy indane |
| Trivial Name | 2,3-Dihydro-1-methoxy-1H-indene |
| Short Description | phloralid |
| Formula | C10 H12 O |
| CAS Number | 1006-27-5 |
| ECHA Number | 213-743-2 |
| FDA UNII | 5EOU9GC035 |
| Nikkaji Number | J217.117A |
| xLogP3-AA | 2.00 (est) |
| NMR Predictor | External link |
| Synonyms |
|
PhysChem Properties
| Material listed in food chemical codex | No |
| Molecular weight | 148.20483398438 |
| Specific gravity | @ 20 °C |
| Pounds per Gallon | 8.506 to 8.589 |
| Refractive Index | 1.527 to 1.533 @ 20 °C |
| Boiling Point | 214 to 216°C @ 760 mm Hg |
| Vapor Pressure | 0.201 mmHg @ 25 °C |
| Flash Point TCC Value | 85 °C TCC |
| logP (o/w) | 1.894 est |
| Solubility | |
| alcohol | Yes |
| carbitol | Yes |
| diethyl phthalate | Yes |
| dipropylene glycol | Yes |
| isopropyl myristate | Yes |
| water, 440.8 mg/L @ 25 °C (est) | Yes |
| water | No |
| Stability | |
| non-discoloring in most media | Unspecified |
| stable in most media | Unspecified |
Organoleptic Properties
| Odor Type: Floral | |
| floral, minty, earthy, hawthorn, animal, anisic | |
| Odor strength | medium , recommend smelling in a 10.00 % solution or less |
| Substantivity | 48 hour(s) at 100.00 % |
| Luebke, William tgsc, (1985) | At 10.00 % in dipropylene glycol. floral minty earthy hawthorn animal anisic |
Potential Uses
| Applications | |
| Odor purposes | Chypre , Earth , Fern , Flower shop , Herbal , Oriental , Rose |
| Other purposes | Topnotes |
| Cosmetic purposes | Fragrance |
Safety Information
Safety information
| European information : | |
| Most important hazard(s): | |
| None - None found. | |
| S 02 - Keep out of the reach of children. S 24/25 - Avoid contact with skin and eyes. | |
| 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 earthy indane usage levels up to: | |||
| 1.0000 % in the fragrance concentrate. | |||
| Recommendation for earthy indane 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):1006-27-5 |
| EPA ACToR:Toxicology Data |
| EPA Substance Registry Services (SRS):Registry |
| Laboratory Chemical Safety Summary :70506 |
| National Institute of Allergy and Infectious Diseases:Data |
| WGK Germany:2 |
| 1-methoxy-2,3-dihydro-1H-indene |
| Chemidplus:0001006275 |