1187550-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1187550-23-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,5,5 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1187550-23:
(9*1)+(8*1)+(7*8)+(6*7)+(5*5)+(4*5)+(3*0)+(2*2)+(1*3)=167
167 % 10 = 7
So 1187550-23-7 is a valid CAS Registry Number.