Heptanoic acid is a C7, straight-chain fatty acid that contributes to the odour of some rancid oils.
定義
Heptanoic acid is a C7, straight-chain fatty acid that contributes to the odour of some rancid oils. Used in the preparation of esters for the fragrance industry, and as an additive in cigarettes. It has a role as a plant metabolite. It is a straight-chain saturated fatty acid and a medium-chain fatty acid. It is a conjugate acid of a heptanoate.
出典: PubChem
米国FDA 物質登録 · UNII THE3YNP39D · 登録名 Heptanoic acid · 単一の化学物質
化粧品での役割
安全性・規制情報
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
別名・識別情報
- CAS No.化学物質登録番号
- 111-14-8
- EC No.EU化学物質目録番号
- 203-838-7
- DTXSID米国EPA化学物質番号
- DTXSID2021600
- DTXCID米国EPA化合物番号
- DTXCID301600
- IUPAC
- Heptanoic acid
- 分子式
- C7H14O2
- 分子量
- 130.187 g/mol
測定された物性
- 性状
- Heptanoic acid appears as a colorless liquid with a pungent odor. Less dense than water and poorly soluble in water. Hence floats on water. Very corrosive. Contact may likely burn skin, eyes, and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Flash point near 200 °F. · Liquid, Other Solid
- 臭い
- Disagreeable, rancid odor, faint tallow-like odor when spectroscopically pure.
- 沸点
- 432 to 473 °F at 760 mmHg (NTP, 1992) · 222.2 °C
- 融点
- 16 °F (NTP, 1992) · -7.17 °C
- 溶解性
- 1 to 10 mg/mL at 73 °F (NTP, 1992) · Solubility in water = 0.2419 g/100 mL water at 15 °C, soluble in ethanol, ether, DMF, dimethyl sulfoxide.
- 密度
- 0.92 at 68 °F (USCG, 1999) - Less dense than water, will float · 0.9181 at 20 °C/4 °C
- 粘度
- 3.40 cP at 30 °C, 0.82 cP at 120 °C · 4.8 mm²/s at 20 °C
- 解離定数
- pKa = 4.4 at 25 °C · pKa = 4.893 at 25 °C
- 分子量
- 130.19
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。
出典: PubChem · 韓国安全保健公団 SDS
製品が実際に使っている用途
米国EPAにこの成分を届け出た製品10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。
- Fragrance3
- Flavouring and nutrient2
- Lubricating agent1
- No specific technical function1
- Processing aids not otherwise specified1
- pH regulating agent1
- Intermediate1
出典: 米国EPA CompTox
刺激・感作試験の記録
皮膚試験7件・眼試験2件の記録があります。
試験の結論はおおむね一致しています(100%)。 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
- Corrosive
skin irritation: in vivo · Screening · other guideline: 49 CFR 173.240. according to - Classification not possible
Skin Sensitization · Screening - Skin Corr. 1B
Skin Irritation · Authoritative - Corrosive
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to - Category 8.2C (Category 1C)
Skin Irritation · Read Across - 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) - Category 1
Skin Irritation · Screening - Category 8.3A (Category 1)
Eye Irritation · Read Across - Category 1
Eye Irritation · Screening
出典: 米国EPA CompTox
関連文献
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- Evaluation of the medical devices benchmark materials in the controlled human patch testing and in the RhE in vitro skin irritation protocol. · 2018
- SkinEthic™ RHE for in vitro evaluation of skin irritation of medical device extracts. · 2018
- Preparation of irritant polymer samples for an in vitro round robin study. · 2018