99817-27-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99817-27-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,1 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99817-27:
(7*9)+(6*9)+(5*8)+(4*1)+(3*7)+(2*2)+(1*7)=193
193 % 10 = 3
So 99817-27-3 is a valid CAS Registry Number.
99817-27-3Relevant articles and documents
One-pot synthesis of 3-amino-4-aryl- and 3-amino-4-hetarylfurazans
Sheremetev
, p. 1057 - 1059 (2005)
A "one pot" method for the synthesis of 3-amino-4-aryl- and 3-amino-4-hetarylfurazans from β-aryl- and 4-β-hetaryl-β-oxo acid esters was developed.
