177976-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177976-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,9,7 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 177976-41:
(8*1)+(7*7)+(6*7)+(5*9)+(4*7)+(3*6)+(2*4)+(1*1)=199
199 % 10 = 9
So 177976-41-9 is a valid CAS Registry Number.