21872-95-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21872-95-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,7 and 2 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21872-95:
(7*2)+(6*1)+(5*8)+(4*7)+(3*2)+(2*9)+(1*5)=117
117 % 10 = 7
So 21872-95-7 is a valid CAS Registry Number.
21872-95-7Relevant articles and documents
CATALYTIC TRANSAMINATION OF DIALKYLAMINO-o-QUINONES
Tsizin, Yu. S.,Chernyak, S. A.,Kornienko, N. I.
, p. 2381 - 2388 (2007/10/02)
The ions of transition and alkaline-earth metals catalyze the transamination of bicyclic dialkylamino-o-quinones by primary and secondary amines.The effectiveness of the catalysis is determined by the type of chelate complex formed by the o-quinones and b