BENZYL ACETOACETATE
BENZYL ACETOACETATE атрибут
| Температура кипения: |
156-159 °C10 mm Hg(lit.) |
| плотность: |
1.112 g/mL at 25 °C(lit.) |
| FEMA: |
2136 | BENZYL ACETOACETATE |
| показатель преломления: |
n20/D 1.512(lit.) |
| Fp: |
>230 °F |
| температура хранения: |
Store below +30°C. |
| растворимость: |
Он растворим в растворах щелочей. |
| пка: |
10.60±0.46(Predicted) |
| форма: |
чистая жидкость |
| цвет: |
Бесцветный до коричневого |
| Запах: |
at 100.00 %. sweet benzyl propionate and acetate floral fruity |
| Odor Type: |
floral |
| Номер JECFA: |
848 |
| БРН: |
2049615 |
| LogP: |
2.03 |
| Справочник по базе данных CAS: |
5396-89-4(CAS DataBase Reference) |
| Вещества, добавляемые в пищу (ранее EAFUS): |
BENZYL ACETOACETATE |
| FDA 21 CFR: |
172.515 |
| Рейтинг продуктов питания EWG: |
1 |
| FDA UNII: |
F9S0XGV18X |
| Система регистрации веществ EPA: |
Benzyl acetoacetate (5396-89-4) |
BENZYL ACETOACETATE химические свойства, назначение, производство
Химические свойства
Benzyl acetoacetate has a sweet, floral, fresh, balsamic, fruity odor similar to that of ethyl acetate.
Вхождение
Reported found in litchi (Litchi sinensis Sonn.).
Использование
Benzyl acetoacetate (AAbenzyl) is chemical intermediate used for the syntheses of different organic chemicals Product Data Sheet
Подготовка
By heating ethyl acetoacetate and benzyl alcohol to 160°C.
Общее описание
Benzyl acetoacetate undergoes asymmetric bioreduction to form benzyl (S)-(+)-3-hydroxybutyrate in the presence of Candida schatavii strain MY 1831.
Методы очистки
Fractionate the ester and collect fractions with the expected physical properties. Otherwise add ca 10% by weight of benzyl alcohol and heat in an oil bath (160-170o, open vessel) for 30minutes during which time excess of benzyl alcohol will have distilled off, then fractionate. [Baker et al. J Org Chem 17 77 1952, Beilstein 6 IV 2480.]
BENZYL ACETOACETATE препаратная продукция и сырье
сырьё
препарат
5-PyriMidinecarboxylic acid, 4-[1,1'-biphenyl]-4-yl-1-[6-[[2-(butylaMino)-1-[3-(Methoxycarbonyl)-4-(2-Methoxy-2-oxoethoxy)phenyl]-2-oxoethyl]hexylaMino]-6-oxohexyl]-1,2,3,4-tetrahydro-6-Methyl-2-oxo-, phenylMethyl ester
Cyclopropanecarboxylic acid, 1-acetyl-, phenylmethyl ester
4-phenylbutanoyl chloride
1(2H)-PyriMidinehexanoic acid, 4-[1,1'-biphenyl]-4-yl-3,4-dihydro-6-Methyl-2-oxo-5-[(phenylMethoxy)carbonyl]-
MFCD22689506
BENZYL ACETOACETATE поставщик
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