Name | Benzyl propionate |
Synonyms | Benzyl propiote Benzylpropionat Benzyl propionate Benzyl Propionate benzyl propanoate enzyl n-propionate Propionic acid benzyl Propanoic acid benzyl Benzyl Alcohol Impurity 4 Propanoic acid benzyl ester Propanoicacid,phenylmethylester propanoic acid, phenylmethyl ester |
CAS | 122-63-4 |
EINECS | 204-559-3 |
InChI | InChI=1/C10H12O2/c1-2-10(11)12-8-9-6-4-3-5-7-9/h3-7H,2,8H2,1H3 |
Molecular Formula | C10H12O2 |
Molar Mass | 164.2 |
Density | 1.03 g/mL at 25 °C (lit.) |
Melting Point | 221-223°C |
Boling Point | 222 °C (lit.) |
Flash Point | 205°F |
JECFA Number | 842 |
Water Solubility | 100-742mg/L at 20-25℃ |
Solubility | 1000g/L in organic solvents at 20 ℃ |
Vapor Presure | 12-17.465Pa at 25℃ |
Appearance | neat |
Color | Colorless to Almost colorless |
BRN | 2046122 |
pKa | 0[at 20 ℃] |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | n20/D 1.497(lit.) |
Physical and Chemical Properties | Colorless liquid. Boiling point 220-222 deg C, the relative density of 1.034(20/20 deg C), the refractive index of 1.498. Flash point 100 ° C, soluble in alcohol and ether, insoluble in water and glycerol. There is a sweet fragrance of flowers. |
Use | Food, Tobacco, soap, daily cosmetic essences, such as the essence, fruit flavor, etc |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 2 |
RTECS | UA2537603 |
TSCA | Yes |
HS Code | 2915 50 00 |
Toxicity | LD50 orally in Rabbit: 3300 mg/kg LD50 dermal Rabbit > 5000 mg/kg |
colorless oily liquid with Jasmine aroma. Boiling Point 222 °c. Soluble in ethanol, ether and other organic solvents, insoluble in water and glycerol.
obtained by direct esterification of propionic acid with benzyl alcohol, neutralization, washing, drying and distillation under reduced pressure. It can also be obtained from the reaction of benzyl chloride with sodium propionate.
It is mainly used to prepare banana, apricot, peach, apple, strawberry, pineapple, cherry, grape and other fruit-based food flavors. The dosage of chewing gum is 19~150mg/kg; 19mg/kg in candy; 17mg/kg in baked food; 4.1 mg/kg in soft drinks; 5.8 mg/kg in cold drinks.
FEMA | 2150 | BENZYL PROPIONATE |
LogP | 2.08-2.4 at 25-35℃ |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
content analysis | method one is determined according to method one in the ester content determination method (OT-18). The amount of the sample was 1G. Equivalent factor (e) in calculation |
toxicity | ADI 5 mg/kg(CE). |
usage limit | FEMA(mg/kg): Soft drink 4.1; Cold drink 5.8; Candy 19; Baked goods 17; gum sugar 19~150; Coating 40. Moderate limits (FDA § 172.515,2000). |
Application | used to prepare daily, soap flavor often used as a modifier of benzyl acetate, co-used for jasmine and rose flavor, to make more fresh, the ratio of propionate to acetate is generally 1:5. It is also used as a fresh flower and fruit aroma, for flower flavor, oriental flavor, etc. Fruit flavor such as Apple, pear, banana, pineapple, grape, Berry is also available. GB 2760~96 is the allowable edible flavor. Mainly used in the preparation of banana, apricot, peach, cherry, raspberry flavor. benzyl propionate is China's "hygienic standard for the use of food additives" allows the use of food spices, mainly used for the preparation of bananas, apricot, peach, apple, pineapple, strawberry, grape, cherry and other fruit-based food flavors. In the amount of gum sugar in 19 ~ 150mg/kg; Candy in 19mg/kg; Baked food in 17mg/kg; Cold drink in 5.8mg/kg; Soft drink in 4.1mg/kg. formulated food, tobacco, soap, daily cosmetic essences, such as the essence of Su Xin, fruit flavor, etc. |
production method | is obtained by direct esterification of propionic acid and benzyl alcohol. The esterification reaction is carried out in the presence of concentrated sulfuric acid. After the reaction, the product is obtained by neutralization, washing, drying and distillation. Fixed consumption of raw materials: benzyl alcohol (97%)800kg/t, propionic acid (95%)1000kg/. Benzyl chloride may also be obtained by reaction with sodium propionate. Under the catalysis of concentrated sulfuric acid, benzyl alcohol and propionic acid were esterified. After neutralization, washing and drying, the product was distilled under reduced pressure. CH3CH2COOH + c6chh52oh [H2SO4]→ CH3CH2COOCH2C6H5 + H2O can also be obtained from the reaction of benzyl chloride and sodium propionate. From benzyl chloride and sodium propionate heated esterification. |