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504422-60-0

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504422-60-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 504422-60-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,4,4,2 and 2 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 504422-60:
(8*5)+(7*0)+(6*4)+(5*4)+(4*2)+(3*2)+(2*6)+(1*0)=110
110 % 10 = 0
So 504422-60-0 is a valid CAS Registry Number.

504422-60-0Relevant articles and documents

Total synthesis of the biologically active, naturally occurring 3,4-dibromo-5-[2-bromo-3,4-dihydroxy-6-(methoxymethyl)benzyl]benzene-1,2-diol and regioselective O-demethylation of aryl methyl ethers

Akbaba, Yusuf,Balaydin, Halis Tuerker,Goeksu, Sueleyman,Sahin, Ertan,Menzek, Abdullah

experimental part, p. 1127 - 1135 (2010/08/21)

3,4-Dibromo-5-[2-bromo-3,4-dihydroxy-6-(methoxymethyl)benzyl]benzene-1, 2-diol (2), a natural product, has been synthesized for the first time starting from (3-bromo-4,5-dimethoxyphenyl)methanol (5) in five steps and with an overall yield of 34%. The reaction of some methoxymethyl-substituted aryl methyl ethers with BBr3, followed by the addition of MeOH, afforded the corresponding methoxymethyl-substituted arylphenols in high yields.

Pyridinium hydrobromide perbromide induces ipsobromodeformylation in o-hydroxy and o-methoxy substituted aromatic aldehydes

Córdoba, Rubén,Plumet, Joaquín

, p. 9303 - 9305 (2007/10/03)

The reaction of o-hydroxy and o-methoxy substituted aromatic aldehydes with PHPB in pyridine gives aromatic bromination products including those arising from ipsobromodeformylation.

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