258841-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258841-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,8,4 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 258841-33:
(8*2)+(7*5)+(6*8)+(5*8)+(4*4)+(3*1)+(2*3)+(1*3)=167
167 % 10 = 7
So 258841-33-7 is a valid CAS Registry Number.