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cyclamen aldehyde
- русский язык имя
- английское имяcyclamen aldehyde
- CAS №103-95-7
- CBNumberCB9246702
- ФормулаC13H18O
- мольный вес190.28
- EINECS203-161-7
- номер MDLMFCD00024160
- файл Mol103-95-7.mol
химическое свойство
Температура кипения | 270 °C(lit.) |
плотность | 0.95 g/mL at 25 °C(lit.) |
давление пара | 0.3Pa at 20℃ |
FEMA | 2743 | 2-METHYL-3-(P-ISOPROPYLPHENYL)PROPIONALDEHYDE |
показатель преломления | n |
Fp | 228 °F |
температура хранения | Inert atmosphere,Room Temperature |
растворимость | Chloroform (Slightly), Ethyl Acetate, Methanol (Slightly) |
форма | Oil |
цвет | Colourless liquid. |
Запах | Powerful floral-green with a characteristic cucumber-melon note used in floral types. |
Вязкость | 7.1mm2/s |
Odor Type | floral |
Растворимость в воде | 66mg/L at 20℃ |
Номер JECFA | 1465 |
Стабильность | Hygroscopic |
LogP | 3.4 at 35℃ |
Справочник по базе данных CAS | 103-95-7(CAS DataBase Reference) |
Вещества, добавляемые в пищу (ранее EAFUS) | 2-METHYL-3-(P-ISOPROPYLPHENYL) PROPIONALDEHYDE |
Рейтинг продуктов питания EWG | 1-2 |
FDA UNII | 4U37UX0E1E |
Система регистрации веществ EPA | Benzenepropanal, .alpha.-methyl-4-(1-methylethyl)- (103-95-7) |
больше
Коды опасности | Xi | |||||||||
Заявления о рисках | 38 | |||||||||
Заявления о безопасности | 26-36 | |||||||||
WGK Германия | 2 | |||||||||
RTECS | MW4900000 | |||||||||
кода HS | 29122990 | |||||||||
Токсичность | The acute oral LD50 value in rats was reported as 3*81 g/kg (Jenner, Hagan, Taylor, Cook & Fitzhugh, 1964). | |||||||||
NFPA 704: |
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рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
предупреждение
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вредная бумага
H315:При попадании на кожу вызывает раздражение.
H317:При контакте с кожей может вызывать аллергическую реакцию.
H412:Вредно для водных организмов с долгосрочными последствиями.
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оператор предупредительных мер
P261:Избегать вдыхания пыли/ дыма/ газа/ тумана/ паров/ аэрозолей.
P264:После работы тщательно вымыть кожу.
P272:Не уносить загрязненную спецодежду с места работы.
P273:Избегать попадания в окружающую среду.
P280:Использовать перчатки/ средства защиты глаз/ лица.
P302+P352:ПРИ ПОПАДАНИИ НА КОЖУ: Промыть большим количеством воды.
cyclamen aldehyde химические свойства, назначение, производство
Описание
2-Methyl-3-(p-isopropylphenyl) propionaldehyde has a strong, flowery odor. May be prepared by condensation of cuminic aldehyde and propionaldehyde followed by hydrogenation in the presence of a catalyst.Химические свойства
The commercially available racemate is a colorless to yellowish liquid with an intense floral odor reminiscent of Cyclamen europaeum (cyclamen, sowbread).Production. Two main processes are used for the industrial synthesis of cyclamen aldehyde:
1) Alkaline condensation of 4-isopropylbenzaldehyde and propanal results, via the aldol, in the formation of 2-methyl-3-(4-isopropylphenyl)-2-propenal. The unsaturated aldehyde is hydrogenated selectively to the saturated aldehyde in the presence of potassium acetate and a suitable catalyst, such as palladium–alumina:
2) Friedel–Crafts reaction of isopropylbenzene and 2-methylpropenal diacetate (methacrolein diacetate) in the presence of titanium tetrachloride/boron trifluoride etherate gives cyclamen aldehyde enolacetate, which is hydrolyzed to aldehyde:
Uses. Cyclamen aldehyde is an important component for obtaining special blossomnotes in perfume compositions, particularly the cyclamen type. Because of its fresh, floral aspect, it is also used as the top note in many other blossomfragrances.
Вхождение
Reported found in nutmeg and starfruit.Использование
Cyclamen Aldehyde is a very powerful, floral, green note used in many perfumery applications to blend into fresh, floral, green or ozonic/marine accords. It is an ingredient with growing use and importance in helping to build replacement accords for materials disappearing from the Perfumers’ palette. Cyclamen has good overall stability except in extremes of pH. It has good tenacity and substantivity and represents very good value for money in new creations.In addition to its use in numerous perfume compositions, cyclamen aldehyde is an intermediate for the preparation of fungicides and fungistatic substances.Подготовка
By condensation of cuminic aldehyde and propionaldehyde followed by hydrogenation in the presence of a catalystПрофиль безопасности
Moderately toxic by ingestion. A human skin irritant. See also ALDEHYDES. When heated to decomposition it emits acrid smoke and irritating fumes.Синтез
Cyclamen aldehyde is synthesized from Cuminaldehyde plus Ropionaldehyde by condensation followed by selective hydrogenation and finally dehydrogenation of the Cyclamen alcohol to aldehyde.cyclamen aldehyde запасные части и сырье
cyclamen aldehyde поставщик
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