84254-69-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84254-69-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,5 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 84254-69:
(7*8)+(6*4)+(5*2)+(4*5)+(3*4)+(2*6)+(1*9)=143
143 % 10 = 3
So 84254-69-3 is a valid CAS Registry Number.
84254-69-3Relevant articles and documents
(3-Carbethoxy-2-oxopropylidene)triphenylphosphorane. A Reagent for "3+3" Cyclohexenone Annulation
Pietrusiewicz, K. Michal,Monkiewicz, Jaroslaw
, p. 788 - 790 (1983)
The development of a new cyclohexenone annulation reaction of general scope which utilizes α,β-unsaturated aldehydes and (3-carbethoxy-2-oxopropylidene)triphenylphosphorane is reported.
