Moderate Cosmetic Ingredient NOAEL Data

Dimethyl 2,6-Naphthalate

INCI: DIMETHYL 2,6-NAPHTHALATE

CAS Number
840-65-3
Function
Skin conditioning agent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not listed under 21 CFR 700.11โ€“700.35 prohibited/restricted substances

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.

Toxicological Studies

3 study endpoints found for Dimethyl 2,6-Naphthalate. 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
LOAEL 2000 ppm oral rat Subchronic COSMOS_DB
NOEL 3000 mg/kg bw/day oral rat oral REACH
NOAEL 1000 mg/kg bw/day oral rat oral REACH

Expert Verdict

Australian NICNAS assessment indicates it would not be classified as hazardous. SDS warns to avoid dust inhalation and prolonged skin contact. Primarily an industrial chemical (PEN plastic precursor); cosmetic use data is sparse. Residual monomer limits should be verified if used in cosmetics.

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Concern Level: Moderate

Frequently Asked Questions

Is Dimethyl 2,6-Naphthalate safe in cosmetics?

Australian NICNAS assessment indicates it would not be classified as hazardous. SDS warns to avoid dust inhalation and prolonged skin contact. Primarily an industrial chemical (PEN plastic precursor); cosmetic use data is sparse. Residual monomer limits should be verified if used in cosmetics. The EU classifies Dimethyl 2,6-Naphthalate as "prohibited". Safety rating: MODERATE. 3 toxicological study endpoint(s) are available in our database.

Is Dimethyl 2,6-Naphthalate allowed in the EU?

Dimethyl 2,6-Naphthalate EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Dimethyl 2,6-Naphthalate do in cosmetics?

Dimethyl 2,6-Naphthalate functions as: Skin conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: 840-65-3.

What is the Margin of Safety for Dimethyl 2,6-Naphthalate?

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.

What is the NOAEL for Dimethyl 2,6-Naphthalate?

The NOAEL (No Observed Adverse Effect Level) for Dimethyl 2,6-Naphthalate is 2000 ppm based on a Subchronic study via oral route in rat. A total of 3 study endpoints are available. Source: COSMOS_DB.

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