87292-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87292-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,9 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87292-91:
(7*8)+(6*7)+(5*2)+(4*9)+(3*2)+(2*9)+(1*1)=169
169 % 10 = 9
So 87292-91-9 is a valid CAS Registry Number.
87292-91-9Relevant articles and documents
Synthesis and Reaction Behaviour of 2-Aryl-3-chloro-maleimides
Augustin, M.,Faust, J.,Koehler, M.
, p. 293 - 300 (2007/10/02)
2-Aryl-3-chloro-maleimides 2 are prepared by the chlorination of aryl-maleicanhydrides and aminolysis of the resulting 1-aryl-2-chloro-maleicanhydrides 1.The imide 2a is reacted with N-, S-, O- and C-nucleophiles and inorganic salts to give 2,3-disubstitu