84-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84-13-9 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84-13:
(4*8)+(3*4)+(2*1)+(1*3)=49
49 % 10 = 9
So 84-13-9 is a valid CAS Registry Number.
InChI:InChI=1/C26H34O4/c1-7-21(19-11-13-23(17(5)15-19)29-25(27)9-3)22(8-2)20-12-14-24(18(6)16-20)30-26(28)10-4/h11-16,21-22H,7-10H2,1-6H3