21141-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21141-28-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,4 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21141-28:
(7*2)+(6*1)+(5*1)+(4*4)+(3*1)+(2*2)+(1*8)=56
56 % 10 = 6
So 21141-28-6 is a valid CAS Registry Number.
InChI:InChI=1/C20H23NO.ClH/c1-14-19-12-15-8-9-17(22)13-18(15)20(14,10-11-21(19)2)16-6-4-3-5-7-16;/h3-9,13-14,19,22H,10-12H2,1-2H3;1H