291744-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291744-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,7,4 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 291744-33:
(8*2)+(7*9)+(6*1)+(5*7)+(4*4)+(3*4)+(2*3)+(1*3)=157
157 % 10 = 7
So 291744-33-7 is a valid CAS Registry Number.