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120983-08-6

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120983-08-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120983-08-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,9,8 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 120983-08:
(8*1)+(7*2)+(6*0)+(5*9)+(4*8)+(3*3)+(2*0)+(1*8)=116
116 % 10 = 6
So 120983-08-6 is a valid CAS Registry Number.

120983-08-6Downstream Products

120983-08-6Relevant articles and documents

The activation of aminals and aminol ethers by sulfur dioxide and their reactions with electron rich aromatic compounds

Heaney, Harry,Papageorgiou, George,Wilkins, Robert F.

, p. 13361 - 13372 (2007/10/03)

Reactions of bis(dialkylamino)methanes and ethoxydialkylaminomethanes with nucleophilic aromatic heterocycles in the presence of sulfur dioxide result in the formation of the expected Mannich bases in good yields. Reactions of phenols are similarly activated by sulfur dioxide which lead to improved regioselectivity: in particular the reactions of 2,5-dimethylphenol result in the formation of 2-dialkylaminomethyl-3,6-dimethylphenol whereas reaction occurs at the I-position using the classical procedures.

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