42456-83-7 Usage
Uses
1,2,3,4-Tetrahydropyrimido[1,2-a]indole was utilized in the preparation of Iminoindolinylidenemalononitriles by condensation with tetracyanoethylene.
Check Digit Verification of cas no
The CAS Registry Mumber 42456-83-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,5 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42456-83:
(7*4)+(6*2)+(5*4)+(4*5)+(3*6)+(2*8)+(1*3)=117
117 % 10 = 7
So 42456-83-7 is a valid CAS Registry Number.