623-70-1 Usage
Chemical properties
It appears as colorless to pale yellow liquid with the boiling point of 136 ° C and flash point of 22 ° C. It exhibits strong acid coke and fruit aroma with the incense of rum and ether.
The natural products exist in apples, papaya, strawberries, rums, wines and cocoa.
Application
It as allowable food spices. Mainly used for the preparation of fruit wine flavor.
Used as the intermediate of organic synthesis, solvents, paint softener.
Production
It is obtained from the esterification of crotonic acid and ethanol in the presence of concentrated sulfuric acid.
Chemical Properties
colourless liquid
Uses
Different sources of media describe the Uses of 623-70-1 differently. You can refer to the following data:
1. Ethyl crotonate is used as a solvent for cellulose esters as well as a plasticizer for acrylic resins.
2. Ethyl Crotonate is a synthetic flavoring agent that is a moderately
stable, colorless to light yellow liquid of sharp winey note. it should
be stored in glass, tin, or resin-lined containers. it is used in fruit
flavors for application in baked goods, beverages, and candy at
2–7 ppm.
3. Solvent and softening agent, lacquers, organic
synthesis.
General Description
Ethyl trans-2-butenoate is a volatile flavor compound found in fruits such as cashew apple, African star apple, naranjilla fruit and sweet passion fruit.
Safety Profile
Moderately toxic by
ingestion and probably by inhalation. A skin ,
mucous membrane, and severe eye irritant.
Very dangerous fire hazard when exposed to
heat or flame; can react vigorously with
oxidizing materials. To fight fire, use foam,
CO2, or dry chemical. See also ESTERS.
When heated to decomposition it emits
acrid smoke and fumes.
Purification Methods
Wash it with aqueous 5% Na2CO3, then with saturated aqueous CaCl2, dry it with CaCl2 and distil it. [Beilstein 2 IV 1500.]
Check Digit Verification of cas no
The CAS Registry Mumber 623-70-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 623-70:
(5*6)+(4*2)+(3*3)+(2*7)+(1*0)=61
61 % 10 = 1
So 623-70-1 is a valid CAS Registry Number.
InChI:InChI=1/C6H10O2/c1-3-5-6(7)8-4-2/h3,5H,4H2,1-2H3/b5-3+
623-70-1Relevant articles and documents
-
Shimamura et al.
, p. 221 (1954)
-
Visible-Light-Promoted Intramolecular α-Allylation of Aldehydes in the Absence of Sacrificial Hydrogen Acceptors
Liu, Feng,Liu, Jia-Li,tu, Jia-Lin
supporting information, p. 7369 - 7372 (2020/10/05)
We report herein an unprecedented protocol for radical cyclization of aldehydes with pendant alkenes via synergistic photoredox, cobaloxime, and amine catalysis. The transformation was achieved in the absence of external oxidants, providing a variety of 5-, 6-, and 7-membered ring products with alkene transposition in satisfactory yields. The reaction exhibits wide functional group compatibility and occurs under mild conditions with extrusion of H2.
MONOMER, POLYMER, RESIST COMPOSITION, AND PATTERNING PROCESS
-
, (2014/03/21)
A polymer comprising recurring units derived from a (meth)acrylate monomer of tertiary ester type having branched alkyl on alicycle is used to form a resist composition. When subjected to exposure, PEB and organic solvent development, the resist composition is improved in dissolution contrast.
