277334-43-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 277334-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,7,3,3 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 277334-43:
(8*2)+(7*7)+(6*7)+(5*3)+(4*3)+(3*4)+(2*4)+(1*3)=157
157 % 10 = 7
So 277334-43-7 is a valid CAS Registry Number.