(R)-2-phenyl propyl alcohol

(R)-2-phenyl propyl alcohol, also known as (R)-beta-methylphenethyl alcohol, is a chiral aromatic alcohol characterized by the molecular formula C₉H₁₂O. This compound presents as a clear liquid exhibiting floral and green sensory notes with nuances of hyacinth and peony. It is known under several synonyms including (+)-2-Phenyl-1-propanol and (R)-hydratropic alcohol. A detailed profile is available via its PubChem entry. Sourced mainly through synthetic routes, it is utilized for its distinct scent attributes in flavor and fragrance industries.

(R)-2-phenyl propyl alcohol occurs predominantly as a synthetic chiral alcohol used extensively in flavor and fragrance applications due to its pronounced floral and green odor characteristics. It serves as a key ingredient to impart complex sensory profiles, including notes reminiscent of hyacinth, hawthorn foliage, peony, and fruity nuances. Its usage complies with fragrance industry standards such as IFRA (Global), which recommends usage limits to ensure consumer safety. This compound enhances both perfumes and flavor formulations, contributing substantivity and desirable aromatic qualities.

(R)-2-phenyl propyl alcohol exhibits physical properties relevant to its formulation and application in fragrances and flavors. It has a molecular weight of approximately 136.19 g/mol and a specific gravity near 0.975 at 25 °C, indicating a slightly dense liquid state. Its boiling point ranges from 232 to 233 °C at atmospheric pressure, with a significantly lower boiling range under reduced pressure. The compound’s vapor pressure at ambient temperature is low, contributing to its moderate volatility. A log P value of about 1.86 reflects balanced lipophilicity, facilitating solubility in alcohols and propylene glycol, while its estimated water solubility is moderate. It possesses a flash point of 94 °C (201 °F), which must be considered in handling. These characteristics influence formulation stability, evaporation rate, and sensory release in applications.

	(2R)-2-phenylpropan-1-ol
NIST Chemistry WebBook:	Search Inchi
Pubchem (cid):	177050
Pubchem (sid):	135156367

(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
ChemSpider:	View

Safety information

Preferred SDS: View
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:
flavor and 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 (R)-2-phenyl propyl alcohol usage levels up to:
	8.0000 % in the fragrance concentrate.

Safety references

EPI System: View

AIDS Citations:Search

Cancer Citations:Search

Toxicology Citations:Search

EPA ACToR:Toxicology Data

EPA Substance Registry Services (SRS):Registry

Laboratory Chemical Safety Summary :177050

National Institute of Allergy and Infectious Diseases:Data

WGK Germany:2

(2R)-2-phenylpropan-1-ol

Chemidplus:0019141403