155338-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155338-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,3,3 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155338-71:
(8*1)+(7*5)+(6*5)+(5*3)+(4*3)+(3*8)+(2*7)+(1*1)=139
139 % 10 = 9
So 155338-71-9 is a valid CAS Registry Number.
155338-71-9Relevant articles and documents
SYNTHESIS OF UNSYMMETRICAL 1,4-NAPHTHOQUINONE DIIMIDES
Matevosyan, K. R.,Lokmane, E. Ya.,Freimanis, Ya. F.
, p. 834 - 839 (2007/10/02)
The reaction of 4-nitronaphthylamine with methane-, benzene-, and p-toluenesulfonyl chlorides in pyridine gave N,N-diacyl-4-nitronaphthylamines, which were converted by alkaline hydrolysis into N-acyl-4-nitronaphthylamines.With benzoyl chloride the reacti
