344304-13-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 344304-13-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,3,0 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 344304-13:
(8*3)+(7*4)+(6*4)+(5*3)+(4*0)+(3*4)+(2*1)+(1*3)=108
108 % 10 = 8
So 344304-13-8 is a valid CAS Registry Number.
344304-13-8Relevant articles and documents
(3-Carbethoxy-2-oxopropylidene)triphenylphosphorane. A Reagent for "3+3" Cyclohexenone Annulation
Pietrusiewicz, K. Michal,Monkiewicz, Jaroslaw
, p. 788 - 790 (2007/10/02)
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.
