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377-61-7

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377-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 377-61-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,7 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 377-61:
(5*3)+(4*7)+(3*7)+(2*6)+(1*1)=77
77 % 10 = 7
So 377-61-7 is a valid CAS Registry Number.

377-61-7Relevant articles and documents

The synthesis of fluorine-containing pterins

Dunn, Caroline,Gibson, Colin L.,Suckling, Colin J.

, p. 13017 - 13026 (2007/10/03)

The synthesis of some 7,7-difluoro-7,8-dihydropterins and pterins with fluoroalkyl substituents at the 6 or 7 positions from fluorine-containing aliphatic precursors and suitably substituted pyrimidines is described. The fluorine-containing pterins were found to be very insoluble and also stable to nucleophiles and bases in dilute aqueous solution.

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