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51281-82-4

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51281-82-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51281-82-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,2,8 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 51281-82:
(7*5)+(6*1)+(5*2)+(4*8)+(3*1)+(2*8)+(1*2)=104
104 % 10 = 4
So 51281-82-4 is a valid CAS Registry Number.

51281-82-4Relevant articles and documents

The direct acyl-alkylation of arynes. Preparation of methyl 2-(2-Acetylphenyl)acetate

Ebner, David C.,Tambar, Uttam K.,Stoltz, Brian M.,Storgaard, Morten,Ide, Nathan D.,Ragan, John A.,Ellman, Jonathan A.

scheme or table, p. 161 - 171 (2011/03/21)

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The direct acyl-alkylation of arynes

Tambar, Uttam K.,Stoltz, Brian M.

, p. 5340 - 5341 (2007/10/03)

An efficient and mild acyl-alkylation of arynes is described. The method is used to synthesize medium-sized carbocycles by the ring-expansion of cyclic β-ketoesters. Copyright

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