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128203-39-4

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128203-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128203-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,0 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128203-39:
(8*1)+(7*2)+(6*8)+(5*2)+(4*0)+(3*3)+(2*3)+(1*9)=104
104 % 10 = 4
So 128203-39-4 is a valid CAS Registry Number.

128203-39-4Relevant articles and documents

Effective activation of the chiral salen/Ti(OiPr)4 catalyst with achiral phenolic N-oxides as additives in the enantioselective cyanosilylation of ketones

He, Bin,Chen, Fu-Xue,Li, Yan,Feng, Xiaoming,Zhang, Guolin

, p. 4657 - 4666 (2007/10/03)

The activation of chiral titanium(IV) complexes with phenolic N-oxides additives has been found to provide an alternative strategy for the asymmetric cyanosilylation of ketones. By using 10 mol % of chiral salen-titanium(IV) complex in combination with 1

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