381239-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 381239-23-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,1,2,3 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 381239-23:
(8*3)+(7*8)+(6*1)+(5*2)+(4*3)+(3*9)+(2*2)+(1*3)=142
142 % 10 = 2
So 381239-23-2 is a valid CAS Registry Number.