283159-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 283159-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,3,1,5 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 283159-39:
(8*2)+(7*8)+(6*3)+(5*1)+(4*5)+(3*9)+(2*3)+(1*9)=157
157 % 10 = 7
So 283159-39-7 is a valid CAS Registry Number.