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1421639-42-0

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1421639-42-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421639-42-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,6,3 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1421639-42:
(9*1)+(8*4)+(7*2)+(6*1)+(5*6)+(4*3)+(3*9)+(2*4)+(1*2)=140
140 % 10 = 0
So 1421639-42-0 is a valid CAS Registry Number.

1421639-42-0Relevant articles and documents

Regioselectivity in the intramolecular heck reaction of a series of cyclic sulfonamides: An experimental and computational study

Geoghegan, Kimberly,Evans, Paul,Rozas, Isabel,Alkorta, Ibon

supporting information, p. 13379 - 13387 (2012/11/07)

Regioselectivity in the intramolecular Heck reaction of a series of N-sulfonyl-2,5-dihydro-3-substituted pyrroles was studied. These substrates are unbiased in terms of the formed ring size of the new heterocycle. Results indicate that high levels of regi

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