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99474-81-4

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99474-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99474-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,4,7 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99474-81:
(7*9)+(6*9)+(5*4)+(4*7)+(3*4)+(2*8)+(1*1)=194
194 % 10 = 4
So 99474-81-4 is a valid CAS Registry Number.

99474-81-4Relevant articles and documents

Alkylation of Carbonyl Compounds with ω-Iodo-2-trimethylstannylalk-1-enes. Novel Annulation Sequences Leading to Diene Systems

Piers, Edward,Friesen, Richard W.,Keay, Brian A.

, p. 809 - 810 (2007/10/02)

Alkylation of cyclic ketones and α-methoxycarbonyl ketones with 4-iodo-2-trimethylstannylbut-1-ene and/or 5-iodo-2-trimethylstannylpent-1-ene, and subsequent (Ph3P)4Pd-catalysed cyclization of the enol trifluoromethanesulphonates derived from the alkylati

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