151699-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 151699-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,6,9 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 151699-81:
(8*1)+(7*5)+(6*1)+(5*6)+(4*9)+(3*9)+(2*8)+(1*1)=159
159 % 10 = 9
So 151699-81-9 is a valid CAS Registry Number.
InChI:InChI=1/C32H20N2/c1-17-11-13-19-23(15-17)27-21-7-3-5-9-25(21)34-32-20-14-12-18(2)16-24(20)28-22-8-4-6-10-26(22)33-31(19)30(28)29(27)32/h3-16H,1-2H3