What is this ingredient?

미국 FDA 물질 등록 · UNII 1UOK9N9N72 · 등록명 2-CYCLOPENTEN-1-ONE, 2-PENTYL- · 단일 화학물질

Ingredient Dictionary

AMYLCYCLOPENTENONE

Korean limit: 0.1%

Definition

US FDA substance register · UNII 1UOK9N9N72 · registered name 2-CYCLOPENTEN-1-ONE, 2-PENTYL- · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Banned: International fragrance standard (IFRA)
Restricted: United Kingdom

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

South Korea

Maximum concentration : 0.1%

European Union

Maximum concentration in ready for use preparation : 0.1%

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 153 · maximum concentration 0.1%

Source: EU restricted substances (Annex III)

Restriction III/153

Source: EU CosIng ingredient list

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

Names & identifiers

AMYLCYCLOPENTENONEINCI아밀사이클로펜테논Korean label name (MFDS standard)2-Cyclopenten-1-one, 2-pentyl-Synonym

CAS No.chemical registry number: 25564-22-1
EC No.EU chemical inventory number: 247-104-4
DTXSIDUS EPA chemical ID: DTXSID6029331
DTXCIDUS EPA compound ID: DTXCID809331

IUPAC: 2-Pentylcyclopent-2-en-1-one
Molecular formula: C10H16O
Molecular weight: 152.237 g/mol

What products actually use it for

What the 2 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.

Fragrance2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

1 skin studies and 0 eye studies are on record.

Classed as moderate2

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 1 studies

Low to Moderate Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation) (According to the Method of Magnusson and Kligman, but pre-dating adoption by OECD as part of TG406)