850221-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 850221-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,0,2,2 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 850221-83:
(8*8)+(7*5)+(6*0)+(5*2)+(4*2)+(3*1)+(2*8)+(1*3)=139
139 % 10 = 9
So 850221-83-9 is a valid CAS Registry Number.
850221-83-9Relevant academic research and scientific papers
Synthesis of pyrazine alcaloids from Botryllus leachi. diazines 43
Buron, Frederic,Ple, Nelly,Turck, Alain,Queguiner, Guy
, p. 2616 - 2621 (2007/10/03)
(Chemical Equation Presented) Regioselective metalation of pyrazines and cross-coupling reactions provides an easy access to botryllazines A and B and to an isomer of botryllazine A with good yields from chloropyrazine.
