947239-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 947239-31-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,7,2,3 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 947239-31:
(8*9)+(7*4)+(6*7)+(5*2)+(4*3)+(3*9)+(2*3)+(1*1)=198
198 % 10 = 8
So 947239-31-8 is a valid CAS Registry Number.
947239-31-8Relevant articles and documents
Stereoselective synthesis of vinylic chalcogenides through vinylic substitution by lithium organylchalcogenolates
Silveira,Guerra,Comasseto
, p. 5121 - 5124 (2007)
Enol phosphates and enol tosilates of β-dicarbonyl compounds react with lithium organoselenolates to give β-organoseleno (Z)-α,β-unsaturated carbonyl compounds. Tetrasubstituted vinylic vic-bis(organylchalcogenides) of (E)-geometry have been prepared by t
