82-99-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82-99-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 82-99:
(4*8)+(3*2)+(2*9)+(1*9)=65
65 % 10 = 5
So 82-99-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H25NOS/c1-3-21(4-2)15-16-23-20(22)19(17-11-7-5-8-12-17)18-13-9-6-10-14-18/h5-14,19H,3-4,15-16H2,1-2H3