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1244028-81-6

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1244028-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1244028-81-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,4,0,2 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1244028-81:
(9*1)+(8*2)+(7*4)+(6*4)+(5*0)+(4*2)+(3*8)+(2*8)+(1*1)=126
126 % 10 = 6
So 1244028-81-6 is a valid CAS Registry Number.

1244028-81-6Downstream Products

1244028-81-6Relevant articles and documents

Pseudomonas cepacia lipase catalyzed esterification and transesterification of 3-(furan-2-yl) propanoic acid/ethyl ester: A comparison in ionic liquids vs hexane

Vidya,Chadha, Anju

experimental part, p. 68 - 72 (2010/10/19)

A comparison of the Pseudomonas cepacia lipase (lipase PS) catalyzed esterification of 3-(furan-2-yl) propanoic acid and transesterification of ethyl 3-(furan-2-yl) propanoate with six straight chain alcohols (propanol to octanol) in ionic liquids and hexane was carried out. The ionic liquids selected, [Bmim]BF4, [Bmim]PF6, and [Bmim]Tf2N, consisted of an identical cation and different anions. This is the first report on the biocatalyzed synthesis of these esters. In all the media, lipase PS catalyzed esterification of 3-(furan-2-yl) propanoic acid resulted in high yields of the esters compared to the transesterification of ethyl 3-(furan-2-yl) propanoate. [Bmim]Tf2N proved to be the best; yielding 98-67% of the product by lipase PS catalyzed esterification. The lipase PS-[Bmim]Tf2N and lipase PS-[Bmim]PF6 mixture was recycled five times without any decrease in the yields of the products and was found to be operationally stable up to 10 months at room temperature.

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