81919-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81919-09-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,1 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81919-09:
(7*8)+(6*1)+(5*9)+(4*1)+(3*9)+(2*0)+(1*9)=147
147 % 10 = 7
So 81919-09-7 is a valid CAS Registry Number.
InChI:InChI=1/C32H58O/c1-22(2)9-7-11-24(12-8-10-23(3)4)28-15-16-29-27-14-13-25-21-26(33)17-19-31(25,5)30(27)18-20-32(28,29)6/h22-30,33H,7-21H2,1-6H3/t25?,26-,27-,28+,29-,30-,31-,32+/m0/s1