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138793-33-6

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138793-33-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138793-33-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,9 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138793-33:
(8*1)+(7*3)+(6*8)+(5*7)+(4*9)+(3*3)+(2*3)+(1*3)=166
166 % 10 = 6
So 138793-33-6 is a valid CAS Registry Number.

138793-33-6Downstream Products

138793-33-6Relevant articles and documents

ortho-Regioselective Arylation of Phenols: New General Synthesis of ortho-Hydroxyarylhydroquinone Bis(methyl Ethers)

Sartori, Giovanni,Maggi, Raimondo,Bigi, Franca,Casnati, Guiseppe

, p. 3059 - 3064 (2007/10/02)

The ortho-regioselective synthesis of unsymmetrical hydroxylated biaryls is accomplished via metal-template arylation of different titanium and bromomagnesium phenolates with benzoquinone bis(dimethyl ketals).The results are interpreted in terms of the co

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