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109296-59-5

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109296-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109296-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,9 and 6 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109296-59:
(8*1)+(7*0)+(6*9)+(5*2)+(4*9)+(3*6)+(2*5)+(1*9)=145
145 % 10 = 5
So 109296-59-5 is a valid CAS Registry Number.

109296-59-5Downstream Products

109296-59-5Relevant articles and documents

THE SELECTIVE CLAISEN AND DIECKMANN ESTER CONDENSATION PROMOTED BY DICHLOROBIS(TRIFLUOROMETHANESULFONATO)TITANIUM(IV)

Tanabe, Yoo

, p. 1917 - 1924 (2007/10/02)

Inter and intramolecular condensations (the Claisen and the Dieckmann condensations) between ester functions have been performed by the combined use of dichlorobis(trifluoromethanesulfonato)titanium(IV) (=dichlorobis(triflato)titanium(IV)) and tertiary amine under mild reaction conditions.These results led to the development of the selective (crossed) Claisen and Dieckmann ester condensation between methoxymethyl ester and methyl ester, in that, dichlorobis(triflato)titanum(IV) contribute to control the direction of the reaction.

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