717-72-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 717-72-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,1 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 717-72:
(5*7)+(4*1)+(3*7)+(2*7)+(1*2)=76
76 % 10 = 6
So 717-72-6 is a valid CAS Registry Number.
717-72-6Relevant articles and documents
Synthesis of an 4-oxo-1,4-dihydropyridinomethylidene substituted 2-indolinone
Lumetzberger, Astrid,Loewe, Werner,Weber, Manuela,Luger, Peter
, p. 155 - 159 (2008/03/27)
(Chemical Equation Presented) The (Z)-3-substituted 2-indolinone 6 was prepared using the aldehydes 4 and 8 unknown up to now and 2-indolinone.