698-10-2 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 698-10-2 differently. You can refer to the following data:
1. light yellow liqui
2. Abhexone has been found in, for example, lovage and roasted coffee. It
has a bouillon-like, coffee and lovage aroma, depending on its concentration. It can
be prepared starting from alkyl 2-oxobutanoate either by self-condensation followed
subsequently by decarbomethoxylation or by condensation with propionaldehyde
and subsequent cyclization . Alkyl 2-oxobutanoate is available
from acrylaldehyde and sodium cyanide via alkyl 2-hydroxy-3-butenoate or
by reaction of dialkyloxalate with ethyl magnesium bromide . It is used for
aromatization of food.
3. 5-Ethyl-3-hydroxy-4-methyl-2(5H)-furanone has a sweet, maple, caramel odor.
Occurrence
Reported found in coffee.
Taste threshold values
Taste characteristics at 50 ppm: sweet, fruity with brown maple note.
Check Digit Verification of cas no
The CAS Registry Mumber 698-10-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 698-10:
(5*6)+(4*9)+(3*8)+(2*1)+(1*0)=92
92 % 10 = 2
So 698-10-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H10O3/c1-3-5-4(2)6(8)7(9)10-5/h4-5H,3H2,1-2H3/t4-,5-/m0/s1
698-10-2Relevant articles and documents
Method for synthesizing ethyl cucurbituride lactone spice
-
Paragraph 0046-0061, (2021/11/14)
Compared with the existing similar products, the method comprises the following steps: preparing 2 -oxobutyric acid ethyl ester by Grignard reaction under the condition of absolute ethyl acetate as a starting raw material and carrying out Grignard reaction on potassium carbonate. After the needed carbon skeleton is cyclized under the action of acetaldehyde, ethylcucurbituric acid lactone is obtained, and the technological process is reduced. The reaction solvent and the extractant are recycled, so that the cost is reduced, the purity of the product is 98.36% through gas chromatography, and higher reaction yield is ensured.