7637-95-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7637-95-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,3 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7637-95:
(6*7)+(5*6)+(4*3)+(3*7)+(2*9)+(1*5)=128
128 % 10 = 8
So 7637-95-8 is a valid CAS Registry Number.