1331784-38-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1331784-38-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,1,7,8 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1331784-38:
(9*1)+(8*3)+(7*3)+(6*1)+(5*7)+(4*8)+(3*4)+(2*3)+(1*8)=153
153 % 10 = 3
So 1331784-38-3 is a valid CAS Registry Number.