Hendecyl alcohol
1-Undecanol
CAS: 112-42-5
Molecular Formula: C11H24O
Hendecyl alcohol - Names and Identifiers
| Name | 1-Undecanol |
| Synonyms | 1-Undecanol decylcarbinol 1-Undecanol 0 Decyl carbinol Hendecyl alcohol hendecanoicalcohol alcooln-undecylique Hendecanoic alcohol Dlcohol c-11 undecylic |
| CAS | 112-42-5 |
| EINECS | 203-970-5 |
| InChI | InChI=1/C11H24O/c1-2-3-4-5-6-7-8-9-10-11-12/h12H,2-11H2,1H3 |
Hendecyl alcohol - Physico-chemical Properties
| Molecular Formula | C11H24O |
| Molar Mass | 172.31 |
| Density | 0.83 g/mL at 25 °C (lit.) |
| Melting Point | 11 °C (lit.) |
| Boling Point | 146 °C/30 mmHg (lit.) |
| Flash Point | >230°F |
| JECFA Number | 106 |
| Water Solubility | Not miscible or difficult to mix with water. Soluble in chloroform and ethyl acetate. |
| Solubility | 0.0057g/l insoluble |
| Appearance | Transparent liquid |
| Color | Clear colorless to pale yellow |
| Odor | Faint alcohol. |
| BRN | 1698334 |
| pKa | 15.20±0.10(Predicted) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, strong acids. |
| Refractive Index | n20/D 1.44(lit.) |
| MDL | MFCD00004751 |
| Physical and Chemical Properties | Colorless oily liquid. Boiling point 241 ℃, melting point> 15 ℃, relative density 0.828-0.834, refractive index 1.437-1.443, flash point 100 ℃, dissolved in 4 volume 60% ethanol and oil flavor, acid value <1.0. There is light sweet wax aroma and with Rose and citrus, pineapple-like fruit aroma. The aroma is citrus fruit fat gas, soft sweet. |
| Use | Spices, prepared lemon, citrus, pineapple and black vinegar millet flavor, used in food. |
Hendecyl alcohol - Risk and Safety
| Risk Codes | R38 - Irritating to the skin R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R43 - May cause sensitization by skin contact |
| Safety Description | S37 - Wear suitable gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 3082 9/PG 3 |
| WGK Germany | 2 |
| RTECS | YQ3155000 |
| TSCA | Yes |
| HS Code | 2905 19 00 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 3000 mg/kg |
Hendecyl alcohol - Nature
Open Data Verified Data
colorless liquid. With obvious fat wax aroma, but with fat unpleasant breath. Insoluble in water, soluble in a variety of organic solvents.
Last Update：2024-01-02 23:10:35
Hendecyl alcohol - Preparation Method
Open Data Verified Data
It is obtained from the reduction of ethyl undecanoate by sodium metal or from the reduction by pressure-catalyzed hydrogenation of ethyl W -11-enoate.
Last Update：2022-01-01 10:08:06
Hendecyl alcohol - Introduction
Colorless liquid. Insoluble in water, soluble in organic solvents such as ethanol. It has light sweet fat wax fragrance, rose fragrance and citrus and pineapple-like fruit fragrance.
Last Update：2022-10-16 17:12:12
Hendecyl alcohol - Application
Open Data Verified Data
for citrus rose type, in essence as a body aroma.
Last Update：2025-08-19 16:24:40
Hendecyl alcohol - Safety
Open Data Verified Data
rat acute oral LD50: 3.0g/kg, rabbit percutaneous LDso 5g/kg. In the closed condition, the sample was applied to the skin of the rabbit for 1 day, which produced moderate irritation. 4% Vaseline preparation was used for human back blocking test, and there was no irritation or sensitization after two days of exposure.
Last Update：2022-01-01 10:08:07
Hendecyl alcohol - Reference Information
| FEMA | 3097 | UNDECYL ALCOHOL |
| LogP | 4.9 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| background and overview | 1-11 alcohol, organic chemical, molecular formula: C11H24O, colorless or light yellow liquid, with lemon flavor. Insoluble in water, soluble in alcohol and ether. It is produced by reduction of ethyl undecanoate by metallic sodium, or by pressure catalytic hydrogenation reduction of ethyl omega-undecanoate, or even by Grignonyl magnesium bromide and ethylene oxide. The application of this alcohol has certain limitations. Because it is solid at low temperature, it is selected from the more characteristic flavors. Citrus rose types are only used as a secondary role of coordination, and they are used as body fragrance in the flavors. Spices used to make acacia, moonlight and other fragrances. 1-11 alcohol, organic chemical, molecular formula: C11H24O, colorless or light yellow liquid, with lemon flavor. Insoluble in water, soluble in alcohol and ether. It is produced by reduction of ethyl undecanoate by metallic sodium, or by pressure catalytic hydrogenation reduction of ethyl omega-undecanoate, or even by Grignonyl magnesium bromide and ethylene oxide. The application of this alcohol has certain limitations. Because it is solid at low temperature, it is selected from the more characteristic flavors. Citrus rose types are only used as a secondary role of coordination, and they are used as body fragrance in the flavors. Spices used to make acacia, moonlight and other fragrances. |
| properties | colorless liquid at room temperature; The aroma of light sweet fat wax has rose fragrance and citrus and pineapple-like fruit fragrance, but the whole body is mainly rose fragrance, which seems to have a little rue flavor. After being highly diluted, it has an orange flavor. The aroma is citrus fruit oil gas, soft and sweet, with a concentration of less than 20 × 10-6, and has fruity and sweet flavor, high concentration produces unpleasant fat and taste; Melting point 15~19 ℃; Flash point> 82 ℃; Density D4250.828 ~ 0.834; Refractive index nD200.4370 ~ 1.4430; Insoluble in water, soluble in most organic solvents, soluble in 60% ethanol at 1:4. |
| Preparation method | Reduced from undecal aldehyde. Place 200ml of anhydric toluene and 70g of sodium in a 5-liter three-neck bottle, heat and reflux until the sodium is fully melted. Stop heating, stir quickly, disperse sodium into sand, stir until the temperature drops to 60 ~ C, add 107 grams of ethyl undecanoate in 150ml of absolute ethanol solution, then add 500ml of absolute ethanol. When the reaction is weakened, heat in an oil bath until the sodium is completely dissolved. Steam distillation is carried out to remove ethanol and toluene, the remaining oil is washed with hot water for 200ml × 3, the ether layer is washed with water, sodium carbonate and water after ether extraction, magnesium sulfate is dried, ether is evaporated, and the rest is distilled under reduced pressure to obtain the product with 70% yield. |
| indications | although this alcohol is a common variety, it is not widely used. It is often shared with undecenal or other lipids and aldehydes as a coordinating agent for aldehydes. It can also be well coordinated with floral fruit flavor, citrus cologne, acacia, acacia, acacia, tuberose, violet, green fragrance, and grass fragrance. It is usually used on rose fragrance base. It can also be used in a small amount in pineapple, citrus, lemon, white lemon, orange, orange, black tea and rose edible essence. |
| product quality | content is not less than 97 ~ 98.5%. |
| storage, transportation and storage | sealed and stored in a cool and dry place, away from fire sources. |
| content analysis | gas chromatography analysis with polar column according to GT-10-4. |
| toxicity | GRAS(FEMA). LD503000mg/kg (rat, oral). |
| usage limit | FEMA(mg/kg): soft drink 2.9; Cold drink 15; Candy 12; Baked food 12. Moderate limit (FDA § 172.515,2000). |
| Main reference materials | [1] Xu Gewen, editor-in-chief Li Buqing. Technical manual for synthetic spice products. Beijing: China Business Publishing House. 1996. 3rd |
| usage | is not widely used. It is often shared with undecenal or other fatty aldehydes as a coordinating agent for aldehydes. It can also be well coordinated with floral, citrus cologne, acacia, acacia, acacia, tuberose, violet, fragrance, and grass fragrance. It is generally used for rose fragrance base. It can also be used in a small amount of pineapple, citrus, lemon, white lemon, orange, orange, black ribes, rose and other edible flavors. spices, prepared lemon, citrus, pineapple and black vinegar millet flavor, used in food. |
| production method | is obtained by reducing unidaldehyde. From the hydrogenation of undecenol. |
| category | flammable liquid |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 3000 mg/kg |
| stimulation data | skin-rabbit 500 mg/24 hours moderate |
| flammability hazard characteristics | flammable; combustion produces stimulating smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, water |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:06
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