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844440-56-8

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844440-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 844440-56-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,4,4,4 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 844440-56:
(8*8)+(7*4)+(6*4)+(5*4)+(4*4)+(3*0)+(2*5)+(1*6)=168
168 % 10 = 8
So 844440-56-8 is a valid CAS Registry Number.

844440-56-8Relevant articles and documents

Experimental evidence for intramolecular ipso substitution of alkyl groups

Zubkov, Fedor I.,Nikitina, Eugenia V.,Kouznetsov, Vladimir V.,Duarte, Luz Dary Avellaneda

, p. 5064 - 5074 (2004)

An acid-mediated intramolecular Friedel-Crafts intramolecular alkene alkylation of the ortho-alkyl group in the N-aryl-amino moiety of various N-(1-allylcycloalkyl)-N-arylamines resulting in alkyl-substituted 3′,4′-dihydro-1′H-spiro[cycloalkane-1,2′-quino

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