73685-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73685-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,8 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73685-21:
(7*7)+(6*3)+(5*6)+(4*8)+(3*5)+(2*2)+(1*1)=149
149 % 10 = 9
So 73685-21-9 is a valid CAS Registry Number.
InChI:InChI=1/C33H40O3/c1-23(9-7-10-24(2)13-19-30-25(3)11-8-20-33(30,4)5)12-18-29-31(34)21-27(22-32(29)35)26-14-16-28(36-6)17-15-26/h7,9-10,12-19,27H,8,11,20-22H2,1-6H3/b9-7-,19-13-,23-12-,24-10-,29-18-