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121898-20-2

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121898-20-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121898-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,9 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121898-20:
(8*1)+(7*2)+(6*1)+(5*8)+(4*9)+(3*8)+(2*2)+(1*0)=132
132 % 10 = 2
So 121898-20-2 is a valid CAS Registry Number.

121898-20-2Relevant articles and documents

Homochiral Perfluoroalkyl-Group-Substituted Secondary Alcohols Through Stereoselective Reduction of Perfluoroalkyl 1-(p-Tolylsulfinyl)alkyl Ketones

Bravo, Pierfrancesco,Frigerio, Massimo,Resnati, Giuseppe

, p. 955 - 960 (2007/10/02)

The reduction of some enantiomerically pure perfluoroalkyl α-(p-tolylsulfinyl) ketones was performed.Alcohols containing perfluoroalkyl and p-tolylsulfinyl groups were obtained with high diastereoselection when a phenyl residue was present on the sulfinylated carbon and with lower diastereoselection in the other cases.Removal of the chiral sulfinyl group from single diastereoisomers gave secondary alcohols containing a perfluoroalkyl group in enantiomerically pure form.

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