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142893-61-6

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142893-61-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142893-61-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,8,9 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142893-61:
(8*1)+(7*4)+(6*2)+(5*8)+(4*9)+(3*3)+(2*6)+(1*1)=146
146 % 10 = 6
So 142893-61-6 is a valid CAS Registry Number.

142893-61-6Relevant articles and documents

Low-valent titanium reductive elimination: a direct and highly stereoselective synthesis of vitamin A aldehyde and all-trans retinoic acid orthothioester

Solladie, G.,Berl, V.

, p. 568 - 574 (2007/10/02)

It is shown that low-valent titanium reductive elimination can be carried out in the presence of a thioacetal or an orthothioester group.The application to the synthesis of vitamin A aldehyde and all-trans retinoic acid orthothioester is described.Keywords - Ti(0) reductive elimination / vitamin A aldehyde / all-trans retinoic acid

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