238756-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 238756-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,8,7,5 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 238756-51:
(8*2)+(7*3)+(6*8)+(5*7)+(4*5)+(3*6)+(2*5)+(1*1)=169
169 % 10 = 9
So 238756-51-9 is a valid CAS Registry Number.