81604-73-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81604-73-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,0 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81604-73:
(7*8)+(6*1)+(5*6)+(4*0)+(3*4)+(2*7)+(1*3)=121
121 % 10 = 1
So 81604-73-1 is a valid CAS Registry Number.
InChI:InChI=1/C41H65NO12/c1-10-31(43)40(9)38(54-40)26(6)19-25(5)37-27(7)34(45)22(2)15-16-29(50-33-20-30(51-39(42)47)35(46)28(8)49-33)14-12-11-13-23(3)36-24(4)17-18-41(48,53-36)21-32(44)52-37/h13,15-17,22,25-30,33-38,45-46,48H,10-12,14,18-21H2,1-9H3,(H2,42,47)/b16-15+,23-13+