121521-33-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121521-33-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,2 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121521-33:
(8*1)+(7*2)+(6*1)+(5*5)+(4*2)+(3*1)+(2*3)+(1*3)=73
73 % 10 = 3
So 121521-33-3 is a valid CAS Registry Number.
InChI:InChI=1/C43H82NO8P/c1-4-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35-42(45)49-39-41(40-51-53(47,48)50-38-37-44-6-3)52-43(46)36-34-32-30-28-26-24-22-20-18-16-14-12-10-8-5-2/h19-22,41,44H,4-18,23-40H2,1-3H3,(H,47,48)/b21-19+,22-20+