340722-38-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340722-38-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,7,2 and 2 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 340722-38:
(8*3)+(7*4)+(6*0)+(5*7)+(4*2)+(3*2)+(2*3)+(1*8)=115
115 % 10 = 5
So 340722-38-5 is a valid CAS Registry Number.
340722-38-5Relevant academic research and scientific papers
Synthesis of macrocycles derived from vanillin and isovanillin
Kumar,Mashraqui
, p. 5 - 10 (2007/10/03)
Readily available vanillin 1 and isovanillin 2 have been exploited for the first time to synthesise thia and aza-bridged macrocycles. Utilising a common approach, 1 and 2 are first converted into the corresponding key intermediates, dicholoro compounds 5
