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25662-41-3

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25662-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25662-41-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,6 and 2 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25662-41:
(7*2)+(6*5)+(5*6)+(4*6)+(3*2)+(2*4)+(1*1)=113
113 % 10 = 3
So 25662-41-3 is a valid CAS Registry Number.

25662-41-3Relevant articles and documents

Diastereocontrol in the synthesis of models of rings C and D of phorbol: Directing effect of an ether substituent on lithium carbenoid mediated cyclopropanation

Drew, Michael G. B.,Harwood, Laurence M.,Macias-Sanchez, Antonio J.,Scott, Richard,Thomas,Uguen, Daniel

, p. 2311 - 2313 (2001)

The diastereocomplementarity of halo- and alkylcarbenes (paths a and b, respectively) was shown in the cyclopropanation reaction of 1. The conversion of 1 into 7,7-dimethylbicyclo[4.1.0]heptan-1,2-diols (±)-2 and (±)-3 represents an important transformati

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