49644-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 49644-65-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,6,4 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 49644-65:
(7*4)+(6*9)+(5*6)+(4*4)+(3*4)+(2*6)+(1*5)=157
157 % 10 = 7
So 49644-65-7 is a valid CAS Registry Number.