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123432-02-0

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123432-02-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123432-02-0 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 123432-02:
(8*1)+(7*2)+(6*3)+(5*4)+(4*3)+(3*2)+(2*0)+(1*2)=80
80 % 10 = 0
So 123432-02-0 is a valid CAS Registry Number.

123432-02-0Relevant articles and documents

CYCLOALKENONE FORMATION BY THE INTRAMOLECULAR ADDITION OF A α-DIAZOKETONE TO AN ACETYLENIC PI-BOND

Padwa, Albert,Krumpe, Keith E.,Zhi, Lin

, p. 2633 - 2636 (1989)

Treatment of several ortho alkynyl substituted α-diazoacetophenone derivatives with rhodium (II) acetate results in intramolecular addition to the acetylenic pi-bond to give a transient cyclopropene which spontaneously rearranges to a vynil carbene interm

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