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123432-01-9

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123432-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123432-01-9 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 2 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123432-01:
(8*1)+(7*2)+(6*3)+(5*4)+(4*3)+(3*2)+(2*0)+(1*1)=79
79 % 10 = 9
So 123432-01-9 is a valid CAS Registry Number.

123432-01-9Relevant articles and documents

Rhodium(II)-Catalyzed Cyclization Reactions of Alkynyl-Substituted α-Diazo Ketones

Padwa, Albert,Krumpe, Keith E.,Gareau, Yves,Chiacchio, Ugo

, p. 2523 - 2530 (2007/10/02)

Treatment of several o-alkynyl-substituted α-diazoacetophenone derivatives with rhodium(II) carboxylates results in the formation of substituted indenones.The simplest mechanism accounting for the results involves addition of a rhodium-stabilized carbenoi

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