Name | 2-Methylundecanal |
Synonyms | FEMA 2794 FEMA 2749 ALDEHYDE C-12 2-Methylundecanal 2-METHYLUNDECANAL ALDEHYDE C-12 MNA 2-METHYLHENDECANAL 2-METHYLUNDECYL ALDEHYDE 2-METHYLNONYLACETALDEHYDE |
CAS | 110-41-8 |
EINECS | 203-765-0 |
InChI | InChI=1/C12H22O/c1-3-4-5-6-7-8-9-10-12(2)11-13/h10-11H,3-9H2,1-2H3 |
Molecular Formula | C12H24O |
Molar Mass | 184.32 |
Density | 0.83g/mLat 25°C(lit.) |
Boling Point | 171°C(lit.) |
Flash Point | 200°F |
JECFA Number | 275 |
Water Solubility | 1.3mg/L at 20℃ |
Vapor Presure | 2.4Pa at 20℃ |
Storage Condition | Room Temprature |
Refractive Index | n20/D 1.432(lit.) |
Physical and Chemical Properties | Colorless to yellowish liquid. Boiling point of 232 ℃, relative density of 0.822-830, refractive index of 1.431-1.436, flash point of 66 ℃, soluble in 4 volume of 80% ethanol and oil, acid value is less than or equal to 5. There is a special fat wax flavor, slightly with the flavor of ambergris, oak moss and terpene sweet orange oil, with the bottom aroma of tuberose-like, with strong aroma and good diffusion, and long fragrance. |
Safety Description | S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 1 |
RTECS | YQ1509000 |
Toxicity | The acute oral LD50 value was reported as > 5 g/kg in the rat . The acute dermal LD50 for sample no. 71-16 was reported to be > 10 g/kg in the rabbit |
FEMA | 2749 | 2-METHYLUNDECANAL |
LogP | 4.9 at 35℃ |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
content analysis | determined by aldehyde determination method (OT-6). The amount of sample taken is 1.2g. The equivalent factor (e) in the calculation is 92.16. Or by gas chromatography (GT-10-4) with non-polar column method. |
toxicity | GRAS(FEMA). |
usage limit | FEMA(mg/kg): soft drink 0.31; Cold drink 0.11; Candy 0.94; Baked food 1.3; Pudding 0.50~2.5; Gum candy 0.20; Jelly 0.33. Moderate limit (FDA § 172.515,2000). |
use | is more suitable for the head fragrance of aldehyde fragrance, but the dosage should not be too large. It can be used in a small amount in tuberose, grass orchid, honeysuckle, jasmine, high-grade flower type, perfume type, aldehyde type and fantasy type essence; it is the raw material of modern perfume type, smoke type, ambergris and amber type. Occasionally, it can also be used in trace amounts for edible flavors. GB 2760-1996 provisions are allowed to use edible spices. Mainly used to prepare citrus, coconut, apricot, pineapple and other flavors. This product has a strong citrus aroma and ambergris. It is used for the preparation of jasmine, dragon salivation, vegetarian blue and other flavors, and is used as a raw material for making up, soap and edible flavors. |
Production method | It is obtained by the reaction of mononone and halogenated acid ester under the action of condensing agent. It is obtained by the reaction of methyl nonone or α-nonyl acrolein and ethyl monochloroacetate in the presence of sodium ethoxide. It can be obtained by cleavage of the corresponding glycidyl acid (glycidic acid). |