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121443-16-1

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121443-16-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121443-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,4 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 121443-16:
(8*1)+(7*2)+(6*1)+(5*4)+(4*4)+(3*3)+(2*1)+(1*6)=81
81 % 10 = 1
So 121443-16-1 is a valid CAS Registry Number.

121443-16-1Relevant articles and documents

Sterically Hindered Free Radicals. 18. Stabilization of Free Radicals by Substituents As Studied by Using Triphenylmethyls

Neumann, Wilhelm P.,Penenory, Alicia,Stewen, Ulrich,Lehnig, Manfred

, p. 5845 - 5851 (2007/10/02)

The relative stabilization of 10 4-mono- and 24 4,4'-disubstituted triphenylmethyl radicals 1 has been measured by recording the degree of dissociation of the corresponding quinonoid dimers 2 by means of ESR.The following substituents or combinations of t

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