7504-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7504-87-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,5,0 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7504-87:
(6*7)+(5*5)+(4*0)+(3*4)+(2*8)+(1*7)=102
102 % 10 = 2
So 7504-87-2 is a valid CAS Registry Number.
7504-87-2Relevant articles and documents
Formation and Pyrolysis of 1-(2'-Pyridyl)-5-aryltetrazoles
Rao, P. Jayaprasad,Reddy, K. Kondal
, p. 117 - 120 (2007/10/02)
A number of 1-(2'-pyridyl)-5-aryltetrazoles (Va-k) have been obtained by the reaction of 2-aroylamidopyridines (III) with phosphorus pentachloride and azidolysis of the resulting imidoyl chlorides.The products obtained on pyrolysis of 1-(2'-pyridyl)-5-ary