42739-26-4 Usage
General Description
Sorbic acid vinyl ester is a chemical compound that is derived from the reaction of sorbic acid and vinyl alcohol. It is commonly used as a food preservative and is known for its ability to inhibit the growth of molds and yeasts in various food products. The compound is often added to food items such as cheese, baked goods, and beverages to extend their shelf life by preventing spoilage. Sorbic acid vinyl ester is considered safe for consumption when used within the approved limits established by regulatory authorities, and it is prized for its ability to effectively preserve food without altering its taste, color, or texture. Additionally, it is also used in other industries such as pharmaceuticals and personal care products for its antimicrobial properties.
Check Digit Verification of cas no
The CAS Registry Mumber 42739-26-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,3 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 42739-26:
(7*4)+(6*2)+(5*7)+(4*3)+(3*9)+(2*2)+(1*6)=124
124 % 10 = 4
So 42739-26-4 is a valid CAS Registry Number.
42739-26-4Relevant articles and documents
Ruthenium-Catalyzed Selective Addition of Carboxylic Acids to Alkynes.A Novel Synthesis of Enol Esters
Mitsudo, Take-aki,Hori, Yoji,Yamakawa, Yasushi,Watanabe, Yoshihisa
, p. 2230 - 2239 (2007/10/02)
Carboxylic acids react with alkynes in the presence of a catalytic amount of bis(ν5-cyclooctadienyl)ruthenium/trialkylphosphine/maleic anhydride in toluene at 60-80 deg.C to give enol esters having a terminal methylene group in good to excellent yields with high regioselectivity.The deuterium distributions in the products of the reaction of acetic acid-d with 1-hexyne and ethyl propargyl carbonate were examined.Kinetic measurments revealed that the rate has first-order dependence on carboxylic acid, alkyne, and the initial concentration of the ruthenium catalyst.
