1637475-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1637475-83-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,7,4,7 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1637475-83:
(9*1)+(8*6)+(7*3)+(6*7)+(5*4)+(4*7)+(3*5)+(2*8)+(1*3)=202
202 % 10 = 2
So 1637475-83-2 is a valid CAS Registry Number.