91524-79-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91524-79-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,2 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91524-79:
(7*9)+(6*1)+(5*5)+(4*2)+(3*4)+(2*7)+(1*9)=137
137 % 10 = 7
So 91524-79-7 is a valid CAS Registry Number.
91524-79-7Relevant articles and documents
A MILD METHOD FOR THE FORMATION OF TOSYLHYDRAZONE DERIVATIVES FROM KETO ESTERS
Vinczer, Peter,Novak, Lajos,Szantay, Csaba
, p. 281 - 288 (2007/10/02)
An improved preparation of tosylhydrazones of α-and β-keto esters, by means of active aluminium oxide as catalyst, are described.
