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544445-13-8

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544445-13-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 544445-13-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,4,4,4 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 544445-13:
(8*5)+(7*4)+(6*4)+(5*4)+(4*4)+(3*5)+(2*1)+(1*3)=148
148 % 10 = 8
So 544445-13-8 is a valid CAS Registry Number.

544445-13-8Relevant articles and documents

Enzymatic removal of carboxyl protecting groups. III. Fast removal of allyl and chloroethyl esters by Bacillus subtilis esterase (BS2)

Fotakopoulou, Irene,Barbayianni, Efrosini,Constantinou-Kokotou, Violetta,Bornscheuer, Uwe T.,Kokotos, George

, p. 782 - 786 (2007)

(Chemical Equation Presented) An esterase from Bacillus subtilis (BS2) allows the fast and selective removal of allyl, 2-chloroethyl, and 2,2,2-chloroethyl esters under mild conditions in high yields. In addition, BS2 easily hydrolyzes phenacyl esters, while the hydrolysis of sterically hindered diphenylmethyl esters is slow, requiring longer reaction time and higher enzyme/substrate ratio.

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