19634-37-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19634-37-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,3 and 4 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19634-37:
(7*1)+(6*9)+(5*6)+(4*3)+(3*4)+(2*3)+(1*7)=128
128 % 10 = 8
So 19634-37-8 is a valid CAS Registry Number.