成分辞典

4-METHYLPENT-3-EN-2-ONE

4-Methyl-3-penten-2-one, 9CI is an olefinic compound.

定義

4-Methyl-3-penten-2-one, 9CI is an olefinic compound. It is functionally related to an acrylic acid.

出典: PubChem

米国FDA 物質登録 · UNII 77LAC84669 · 登録名 Mesityl oxide · 単一の化学物質

製品に香りをつけるPERFUMING

韓国の有害物質GHS分類なし · 既存化学物質

詳しい資料 — 表示名・識別番号・物性・試験記録・文献

4-METHYLPENT-3-EN-2-ONEINCI3-Penten-2-one, 4-methyl-別名

性状: Mesityl oxide appears as a colorless, oily liquid with a pungent honey-like odor. Flash point 87 °F. Less dense than water and slightly soluble in water. Vapors heavier than air. Used in paint removers, as a solvent for plastics, and as an insect repellent. · Oily, colorless to light-yellow liquid with a peppermint- or honey-like odor, [NIOSH]
臭い: ... spearmint ... · COMMERCIAL GRADE EXHIBITS AN UNPLEASANT ODOR
沸点: 266 °F at 760 mmHg (USCG, 1999) · 130 °C at 760 mm Hg
融点: -51 °F (USCG, 1999) · -59 °C
溶解性: 3 % (NIOSH, 2024) · Sol in about 30 parts water, miscible with most org liq
密度: 0.853 at 68 °F (USCG, 1999) - Less dense than water, will float · 0.8592 at 15 °C/4 °C
融点・凝固点: -59 ℃
初留点および沸点範囲: 130 ℃
引火点: 25 ℃(101.3 kPa EU Method A.9, GLP)
燃焼・爆発範囲の上限/下限: 7.2 / 1.4 %
蒸気圧: 1.2 ㎪ (20℃)
溶解度: 26.98 (20℃, pH=3.7 (OECD TG , GLP), g/L)
蒸気密度: 3.4 (air=1)
比重: 0.8592 (15℃/4℃)
n-オクタノール/水分配係数（Kow）: 1.37
自然発火温度: 335 ℃ (1013 hPa, (EU Method A.15))
粘度: 0.717 (20.15 °C, (OECD TG 114, GLP))
分子量: 98.14

物質そのものを測定した値です。安全保健公団（KOSHA）の資料はSDS作成・確認の参考用で、原料商品の規格ではありません。

米国EPAにこの成分を届け出た製品8件の用途です。化粧品以外の製品も含まれるため、上の数行がこの成分の主な使い道といえます。

皮膚試験5件・眼試験4件の記録があります。

刺激が強いと分類1件中程度と分類1件低いと分類1件

試験ごとに結論が分かれています（最も多い結論の割合 33%）。この成分が刺激性だとは言い切れないということです。原料そのものを試験した記録で、完成品に含まれる濃度での刺激性とは異なります。

試験9件をすべて見る

Severe Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EPA OPPTS 870.2500 (Acute Dermal Irritation) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to
Category 6.3B (Category 3)
Skin Irritation · Read Across
Category 2
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) according to EU Method B.6 (Skin Sensitisation)
Serious eye damage/eye irritation - Category 2
Eye Irritation · Screening
Category 2A
Eye Irritation · Screening
Severe Irritation
eye irritation: in vitro / ex vivo · Screening · other guideline: OECD 437 "Bovine Corneal Opacity and Permeability Test Method for Identifying Ocular Corrosives and Severe Irritants (adopted 7 September 2009) according to
Category 8.3A (Category 1)
Eye Irritation · Read Across