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428817-01-0

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428817-01-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 428817-01-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,8,1 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 428817-01:
(8*4)+(7*2)+(6*8)+(5*8)+(4*1)+(3*7)+(2*0)+(1*1)=160
160 % 10 = 0
So 428817-01-0 is a valid CAS Registry Number.

428817-01-0Relevant articles and documents

Parallel fluorous biphasic synthesis of 3H-quinazolin-4-ones by an Aza-Wittig reaction employing perfluoroalkyl-tagged triphenylphosphine

Barthélémy, Sophie,Schneider, Siegfried,Bannwarth, Willi

, p. 807 - 810 (2007/10/03)

A perfluoroalkyl-tagged triphenylphosphine was applied in a fluorous biphasic system for the efficient parallel synthesis of 3H-quinazolin-4-ones via an Aza-Wittig reaction. The products were isolated by solid-phase extraction on fluorous reversed-phase silica gel. A new solid-phase bound phosphine derivative was used for comparison and yielded similar results.

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