Good Cosmetic Ingredient NOAEL Data Sensitization Data

3-Propylidenephthalide

INCI: 3-PROPYLIDENEPHTHALIDE

CAS Number
17369-59-4
Function
Fragrance with celery and herbal character; used as flavor modifier
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” FEMA GRAS #2952

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

2 study endpoints found for 3-Propylidenephthalide. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 6.55 mg/kg bw/day oral rat Subchronic COSMOS_DB
dose_tested 6.55 mg/kg bw/day oral rat Subchronic COSMOS_DB

Sensitization Profile

Contact sensitization data for 3-Propylidenephthalide based on clinical patch test studies and IFRA standards.

Sensitization Rate
low
Allergen Class
fragrance
EU Allergen Listed
yes
Patch Test Positive Rate
0.2%
Cross-reactivity Group
none
Reaction Type
contact-dermatitis
IFRA Restricted

Source: EU 2023/1545; SCCS

Expert Verdict

GHS classified as Irritant; IFRA category-specific maximum use levels must be observed (e.g., 0.1% for leave-on face and body creams)

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Concern Level: Moderate

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive eu_cosing_listed jecfa_safe

Frequently Asked Questions

Is 3-Propylidenephthalide safe in cosmetics?

GHS classified as Irritant; IFRA category-specific maximum use levels must be observed (e.g., 0.1% for leave-on face and body creams) The EU classifies 3-Propylidenephthalide as "prohibited". Safety rating: GOOD. 2 toxicological study endpoint(s) are available in our database.

Is 3-Propylidenephthalide allowed in the EU?

3-Propylidenephthalide EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does 3-Propylidenephthalide do in cosmetics?

3-Propylidenephthalide functions as: Fragrance with celery and herbal character; used as flavor modifier. It is classified as a cosmetic ingredient in our database. CAS number: 17369-59-4.

What is the Margin of Safety for 3-Propylidenephthalide?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

What is the NOAEL for 3-Propylidenephthalide?

The NOAEL (No Observed Adverse Effect Level) for 3-Propylidenephthalide is 6.55 mg/kg bw/day based on a Subchronic study via oral route in rat. A total of 2 study endpoints are available. Source: COSMOS_DB.

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