74638-01-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74638-01-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,3 and 8 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74638-01:
(7*7)+(6*4)+(5*6)+(4*3)+(3*8)+(2*0)+(1*1)=140
140 % 10 = 0
So 74638-01-0 is a valid CAS Registry Number.