328271-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 328271-34-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,8,2,7 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 328271-34:
(8*3)+(7*2)+(6*8)+(5*2)+(4*7)+(3*1)+(2*3)+(1*4)=137
137 % 10 = 7
So 328271-34-7 is a valid CAS Registry Number.