136281-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136281-54-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,8 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136281-54:
(8*1)+(7*3)+(6*6)+(5*2)+(4*8)+(3*1)+(2*5)+(1*4)=124
124 % 10 = 4
So 136281-54-4 is a valid CAS Registry Number.