4121-75-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4121-75-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,2 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4121-75:
(6*4)+(5*1)+(4*2)+(3*1)+(2*7)+(1*5)=59
59 % 10 = 9
So 4121-75-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H23NO3/c1-3-9-21(2)10-8-20-13-5-7-16(23)19(20)24-18-15(22)6-4-12(17(18)20)11-14(13)21/h3-7,13-14,16,19,23H,1,8-11H2,2H3/p+1/t13?,14-,16+,19+,20+,21?/m1/s1