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20340-62-9

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20340-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20340-62-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,4 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20340-62:
(7*2)+(6*0)+(5*3)+(4*4)+(3*0)+(2*6)+(1*2)=59
59 % 10 = 9
So 20340-62-9 is a valid CAS Registry Number.

20340-62-9Upstream product

20340-62-9Relevant articles and documents

Novel template-directed anodic phenol-coupling reaction

Malkowsky, Itamar M.,Rommel, Christina E.,Froehlich, Roland,Griesbach, Ulrich,Puetter, Hermann,Waldvogel, Siegfried R.

, p. 7482 - 7488 (2006)

Substituted phenols were anodically coupled to the corresponding 2,2'-biphenols via tetraphenoxy borate derivatives. This electrochemical method is particularly useful for methyl-substituted substrates, such as 2,4-dimethyl phenol. The selective ortho-coupling reaction can be easily performed on a multikilogram scale.

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