Ingredient Dictionary

METHYL 2-OCTYNOATE

Methyl 2-octynoate is a fatty acid ester.

How much products actually contain

No product states its amount yet.

Of the products containing it, 0 list it before the 1% line and 8 after it (usually 1% or less).

Products using this ingredient

8 of 8 confirmed · likeliest to carry enough first

Definition

Methyl 2-octynoate is a fatty acid ester.

Source: PubChem

US FDA substance register · UNII 0TTP6YT2T3 · registered name METHYL HEPTINE CARBONATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Restricted: International fragrance standard (IFRA) · United Kingdom

Source: IFRA fragrance standards · MFDS (Korea) cosmetic regulatory information · UK cosmetics regulations (OPSS)

South Korea

Maximum concentration : 0.01%

European Union

Product Type, body parts : (a) Oral products (b) Other products
Maximum concentration in ready for use preparation : (b) 0.01% when used alone When present in combination with methyl octine carbonate, the combined level in the finished product shall not exceed 0,01 % (of which methyl octine carbonate shall not be more than 0,002 %)
Other : (a)(b) The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)(g) when its concentration exceeds: - 0.001% in leave-on products - 0.01% in rinse-off products

Source: MFDS (Korea) cosmetic regulatory information

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 89 · maximum concentration (b) 0.01% when used alone When present in combination with methyl octine carbonate, the combined level in the finished product shall not exceed 0,01 % (of which methyl octine carbonate shall not be more than 0,002 %) · applies to (a) Oral products (b) Other products

Source: EU restricted substances (Annex III)

Restriction III/89

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name ２－オクチン酸メチル: 本品は、次の化学式で表されるエステルである。

Source: JCIA labelling names (Japan)

Names & identifiers

METHYL 2-OCTYNOATEINCI메틸2-옥티노에이트Korean label name (MFDS standard)2-Octynoic acid, methyl esterSynonym２－オクチン酸メチルJapanese labelling name

CAS No.chemical registry number: 111-12-6
EC No.EU chemical inventory number: 203-836-6
DTXSIDUS EPA chemical ID: DTXSID9047093
DTXCIDUS EPA compound ID: DTXCID7027093

IUPAC: Methyl oct-2-ynoate
Molecular formula: C9H14O2
Molecular weight: 154.209 g/mol

Measured properties

Initial boiling point and range: 217 ℃
Water solubility: 433.9 ㎎/ℓ
Relative density: 0.926 (at 20℃)
n-Octanol/water partition coefficient (Kow): 2.6043
Molecular weight: 154.23

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: KOSHA safety data sheets (Korea)

What products actually use it for

What the 14 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Fragrance11
Flavouring and nutrient2
Deodorizer1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 1 eye studies are on record.

Classed as highly irritating1Classed as moderate1

The studies disagree (the most common conclusion covers 50%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 3 studies

High Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Moderate or Mild Irritation
skin irritation: in vivo · Screening · other guideline: Open Epicutaneous Test Testing method only, no guideline available. according to
Studies Indicate No Significant Irritation
eye irritation: in vitro / ex vivo · Screening · other guideline: OECD Guideline 437 (Bovine Corneal Opacity and Permeability Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage) according to