156643-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156643-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,4 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156643-04:
(8*1)+(7*5)+(6*6)+(5*6)+(4*4)+(3*3)+(2*0)+(1*4)=138
138 % 10 = 8
So 156643-04-8 is a valid CAS Registry Number.
156643-04-8Relevant academic research and scientific papers
SYNTHESE DES PYRAZOLOTRIAZEPINOBENZIMIDAZOLES ET DES PYRAZOLOTHIADIAZEPINOBENZIMIDAZOLES A PARTIR DES 1,5-BENZODIAZEPINES
Essassi, E. M.,Salem, M.,Viallefont, Ph.
, p. 57 - 62 (2007/10/02)
1,5-benzodiazepine-2-thiones were used as precursors in the synthesis of new heterocyclic systems: pyrazolotriazepinobenzimidazoles and pyrazolothiadiazepinobenzimidazoles.
