67-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67-98-1 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 6 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 67-98:
(4*6)+(3*7)+(2*9)+(1*8)=71
71 % 10 = 1
So 67-98-1 is a valid CAS Registry Number.
InChI:InChI=1/C27H33NO3/c1-4-28(5-2)19-20-31-26-17-13-24(14-18-26)27(29,23-9-7-6-8-10-23)21-22-11-15-25(30-3)16-12-22/h6-18,29H,4-5,19-21H2,1-3H3