1123311-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1123311-91-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,3,3,1 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1123311-91:
(9*1)+(8*1)+(7*2)+(6*3)+(5*3)+(4*1)+(3*1)+(2*9)+(1*1)=90
90 % 10 = 0
So 1123311-91-0 is a valid CAS Registry Number.
1123311-91-0Relevant academic research and scientific papers
Photocycloaddition reactions of 2-(alk-3-en-1-ynyl)cyclohex-2-enones
Moebius, Janne,Margaretha, Paul
body text, p. 2216 - 2221 (2009/03/12)
The newly synthesized 2-(alk-3-en-1-ynyl)cyclohex-2-enones 4 undergo photodimerization (chemo- and regio-)selectively at the exocyclic C=C bond to give diastereoisomeric mixtures of 1,2-dialkynyl-1,2-dimethylcyclobutanes. On irradiation of 4 in the presen
