Heptanoic acid is a C7, straight-chain fatty acid that contributes to the odour of some rancid oils.
定义
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.
来源: PubChem
美国FDA 物质登记 · UNII THE3YNP39D · 登记名称 Heptanoic acid · 单一化学物质
化妆品中的作用
安全与法规参考
未列入韩国有毒物质 GHS 分类 · 现有化学物质
详细资料——标示名称、识别编号、物性、试验记录、文献
别名和识别信息
- CAS No.化学物质登记号
- 111-14-8
- EC No.欧盟化学品目录编号
- 203-838-7
- DTXSID美国EPA化学品编号
- DTXSID2021600
- DTXCID美国EPA化合物编号
- DTXCID301600
- IUPAC
- Heptanoic acid
- 分子式
- C7H14O2
- 分子量
- 130.187 g/mol
实测物性
- 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
- 气味
- Disagreeable, rancid odor, faint tallow-like odor when spectroscopically pure.
- 沸点
- 432 to 473 °F at 760 mmHg (NTP, 1992) · 222.2 °C
- 熔点
- 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
- 黏度
- 3.40 cP at 30 °C, 0.82 cP at 120 °C · 4.8 mm²/s at 20 °C
- 解离常数
- pKa = 4.4 at 25 °C · pKa = 4.893 at 25 °C
- 分子量
- 130.19
这是对物质本身测得的数值。韩国安全保健公团(KOSHA)的资料仅供编写和审核安全数据表参考,并非原料商品的规格。
来源: PubChem · 韩国安全保健公团 安全数据表
产品实际使用的用途
这是向美国 EPA 申报含该成分的 10 款产品的用途。其中包括化妆品以外的产品,排在前几行的即为该成分的主要用途。
- Fragrance3
- Flavouring and nutrient2
- Lubricating agent1
- No specific technical function1
- Processing aids not otherwise specified1
- pH regulating agent1
- Intermediate1
来源: 美国EPA CompTox
刺激与致敏试验记录
记录有皮肤试验 7 项、眼部试验 2 项。
试验结论基本一致(100%)。 这是对原料本身的试验记录,与成品中所含浓度下的刺激性不同。
查看全部 9 项试验
- 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
来源: 美国EPA CompTox
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