138775-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138775-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,7 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138775-52:
(8*1)+(7*3)+(6*8)+(5*7)+(4*7)+(3*5)+(2*5)+(1*2)=167
167 % 10 = 7
So 138775-52-7 is a valid CAS Registry Number.