89672-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89672-04-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,7 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89672-04:
(7*8)+(6*9)+(5*6)+(4*7)+(3*2)+(2*0)+(1*4)=178
178 % 10 = 8
So 89672-04-8 is a valid CAS Registry Number.
89672-04-8Relevant academic research and scientific papers
A new method of nitration of carbazoles using ceric ammonium nitrate (CAN)
Chakrabarty,Batabyal
, p. 1 - 10 (2007/10/02)
A convenient procedure for the mononitration of carbazole and 9-alkylcarbazoles using CAN in CH3CN in presence of SiO2 is reported. The results with 9-acetyl, 9-benzoyl and 9- benzenesulphonylcarbazoles are also discussed.
