21220-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21220-90-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,2 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21220-90:
(7*2)+(6*1)+(5*2)+(4*2)+(3*0)+(2*9)+(1*0)=56
56 % 10 = 6
So 21220-90-6 is a valid CAS Registry Number.
InChI:InChI=1/C10H23NO3S2/c1-4-10(5-2,6-3)9-11-7-8-15-16(12,13)14/h11H,4-9H2,1-3H3,(H,12,13,14)