Isononyl Propionate

INCI: ISONONYL PROPIONATE

CAS Number
Not widely cited in major databases (limited public CAS data available; may be supplier-specific)
Function
Emollient, skin conditioning agent. As a propionic acid ester of isononyl alcohol, it functions similarly to other isononyl esters
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - not specifically prohibited or restricted for cosmetic use

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Very limited standalone safety data. Should be assessed under the broader class of alkyl propionate esters, which are generally regarded as low-irritation emollients. Expected to be a lightweight, low-viscosity ester providing a dry, non-greasy skin feel - characteristic of short-chain acid esters with branched alcohols. Likely offers good spreadability and fast absorption

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Concern Level: Moderate

Regulatory Flags

ifra_fragrance

Frequently Asked Questions

Is Isononyl Propionate safe in cosmetics?

Very limited standalone safety data. Should be assessed under the broader class of alkyl propionate esters, which are generally regarded as low-irritation emollients. Expected to be a lightweight, low-viscosity ester providing a dry, non-greasy skin feel - characteristic of short-chain acid esters with branched alcohols. Likely offers good spreadability and fast absorption The EU classifies Isononyl Propionate as "prohibited". Safety rating: MODERATE.

Is Isononyl Propionate allowed in the EU?

Isononyl Propionate EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Isononyl Propionate do in cosmetics?

Isononyl Propionate functions as: Emollient, skin conditioning agent. As a propionic acid ester of isononyl alcohol, it functions similarly to other isononyl esters. It is classified as a cosmetic ingredient in our database. CAS number: Not widely cited in major databases (limited public CAS data available; may be supplier-specific).

What is the Margin of Safety for Isononyl Propionate?

not established 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.

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