FlavScents AInsights Entry for Styralyl Acetate (CAS: 93-92-5)

1. Identity & Chemical Information

Styralyl acetate, also known as 2-phenylethyl acetate, is a single chemical compound with the IUPAC name 2-phenylethyl acetate. It is registered under the CAS number 93-92-5. The FEMA number for styralyl acetate is 2893. Other identifiers include its FL number, which is 09.012, and it is recognized by various regulatory bodies for its use in flavor and fragrance applications. The molecular formula of styralyl acetate is C10H12O2, and it has a molecular weight of 164.20 g/mol. This compound features an ester functional group, which is significant for its odor profile, contributing to its sweet, floral, and fruity characteristics.

Citation hooks: FlavScents; PubChem; FEMA

2. Sensory Profile

Styralyl acetate is characterized by its sweet, floral, and fruity odor, reminiscent of honey and rose. It is often described as having a moderate intensity with good diffusion properties, making it a versatile component in both flavor and fragrance formulations. The compound is typically used as an impact note or a modifier to enhance the overall sensory profile of a product. While specific taste and odor thresholds are not widely documented, its sensory role is well-established in the industry for adding a natural and appealing aroma.

Citation hooks: FlavScents; peer-reviewed sensory literature

3. Natural Occurrence & Formation

Styralyl acetate is naturally found in various fruits and flowers, contributing to their characteristic aromas. It can be formed through the esterification of phenylethyl alcohol with acetic acid, a reaction that can occur naturally in plants or be synthesized for commercial use. Its presence in natural sources supports its designation as a "natural flavor" or "natural fragrance" in certain regulatory contexts, depending on the method of extraction or synthesis.

Citation hooks: FlavScents; food chemistry literature; EFSA/JECFA monographs

4. Use in Flavors

In the flavor industry, styralyl acetate is used across various categories, including fruit, floral, and honey flavors. It serves as a functional component to enhance sweetness and add complexity to flavor systems. Typical use levels in finished food or beverage products range from 1 to 20 ppm, with variations depending on the desired intensity and product type. Styralyl acetate is generally stable under normal processing conditions, but formulators should consider its potential for hydrolysis under acidic conditions.

Citation hooks: FlavScents; FEMA GRAS documentation; formulation literature

5. Use in Fragrances

Styralyl acetate is a valuable ingredient in the fragrance industry, commonly used in floral and fruity fragrance families. It acts as a modifier or impact note, providing a sweet and natural aroma. Typical concentration ranges in fragrance formulations vary, but it is often used at levels of 0.1% to 1% depending on the desired effect. Its volatility allows it to contribute to the top and middle notes of a fragrance composition.

Citation hooks: FlavScents; IFRA; fragrance chemistry texts

6. Regulatory Status (Regional Overview)

In the United States, styralyl acetate is recognized as GRAS (Generally Recognized As Safe) by FEMA for flavor use. In the European Union, it is listed under Regulation (EC) No 1334/2008 with an assigned FL number. The United Kingdom follows similar regulations post-Brexit. In Asia, including Japan and China, and in Latin America, such as Brazil and MERCOSUR, its use is generally accepted, but specific regulatory approvals may vary. It is important for formulators to verify compliance with local regulations.

Citation hooks: FEMA; EFSA; national authority publications

7. Toxicology, Safety & Exposure Considerations

Styralyl acetate is considered safe for use in flavors and fragrances when used within recommended levels. For oral exposure, it has a favorable safety profile with an established ADI (Acceptable Daily Intake) by relevant authorities. Dermal exposure in fragrance applications is generally well-tolerated, with low potential for irritation or sensitization, as supported by IFRA guidelines. Inhalation exposure is considered safe under typical use conditions, but occupational exposure limits should be observed in manufacturing settings.

Citation hooks: EFSA; FEMA; PubChem; toxicology literature

8. Practical Insights for Formulators

Styralyl acetate is valued for its ability to impart a sweet, floral aroma that enhances both flavor and fragrance formulations. It synergizes well with other floral and fruity notes, providing depth and complexity. Formulators should be cautious of overuse, which can lead to an overpowering sweetness. It is often under-utilized in formulations seeking a natural aroma profile, offering opportunities for innovation in product development.

Citation hooks: FlavScents; industry practice

9. Confidence & Data Quality Notes

The data on styralyl acetate is well-established, with comprehensive documentation available from authoritative sources. While industry practices are generally consistent, some undocumented variations in use levels and sensory applications may exist. Regulatory ambiguities are minimal, but formulators should remain informed of any changes in regional regulations.

Citation hooks: FlavScents

QA Check

• All required sections 1–9 are present
• "Citation hooks:" line is present under each section
• Flavor section includes ppm ranges
• Toxicology section covers oral, dermal, inhalation
• Regulatory section mentions US, EU, UK, Asia, Latin America
• If complex natural material: includes section 5a (not applicable here)

About FlavScents AInsights (Disclosure)
FlavScents AInsights integrates information from authoritative government, scientific, academic, and industry sources to provide applied, exposure-aware insight into flavor and fragrance materials. Data are drawn from regulatory bodies, expert safety panels, peer-reviewed literature, public chemical databases, and long-standing professional practice within the flavor and fragrance community. Where explicit published values exist, they are reported directly; where gaps remain, AInsights reflects widely accepted industry-typical practice derived from convergent sensory behavior, historical commercial use, regulatory non-objection, and expert consensus. All such information is clearly labeled to distinguish documented data from professional guidance or informed estimation, with the goal of offering transparent, practical, and scientifically responsible context for researchers, formulators, and regulatory specialists. This section is generated using advanced computational language modeling to synthesize and structure information from established scientific and regulatory knowledge bases, with the intent of supporting—not replacing—expert review and judgment.

Generated 2026-03-31 16:24:36 GMT (p2)