Azo polymer for reversible optical storage. Large photoinduced refractive index change utilized in the preparation of channel waveguide structures.
Check Digit Verification of cas no
The CAS Registry Mumber 134847-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,4 and 7 respectively; the second part has 2 digits, 5 and 2 respectively. Calculate Digit Verification of CAS Registry Number 134847-52: (8*1)+(7*3)+(6*4)+(5*8)+(4*4)+(3*7)+(2*5)+(1*2)=142 142 % 10 = 2 So 134847-52-2 is a valid CAS Registry Number.