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123433-56-7

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123433-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123433-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,3 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 123433-56:
(8*1)+(7*2)+(6*3)+(5*4)+(4*3)+(3*3)+(2*5)+(1*6)=97
97 % 10 = 7
So 123433-56-7 is a valid CAS Registry Number.

123433-56-7Relevant articles and documents

Studies of the asymmetric [2+2] cycloaddition of silylketenes and aldehydes employing Ti-TADDOL catalysts

Yang, Hong Woon,Romo, Daniel

, p. 2877 - 2880 (2007/10/03)

Ti-TADDOL catalysts provide good reactivity and moderate enantioselectivity in the asymmetric [2+2] cycloaddition of silyl ketenes and aldehydes. The effects of potential bidentate chelation of benzyloxy substituted aldehydes and of the steric size of the ketene silyl group were studied.

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