140481-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140481-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,4,8 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140481-21:
(8*1)+(7*4)+(6*0)+(5*4)+(4*8)+(3*1)+(2*2)+(1*1)=96
96 % 10 = 6
So 140481-21-6 is a valid CAS Registry Number.
140481-21-6Relevant articles and documents
Studies on quinones. Part 22. Synthesis of 1-benzazepine-6,9-quinone derivatives
Valderrama,Pessoa-Mahana,Tapia
, p. 629 - 639 (1992)
A facile synthesis of 1,2,3,4-tetrahydro-5H-1-benzazepine-quinone derivatives starting from 5-methoxy-1-tetralone is described.