87189-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87189-13-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,8 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 87189-13:
(7*8)+(6*7)+(5*1)+(4*8)+(3*9)+(2*1)+(1*3)=167
167 % 10 = 7
So 87189-13-7 is a valid CAS Registry Number.
InChI:InChI=1/C21H32N2O/c1-21-10-9-17-16-6-4-15(24)13-14(16)3-5-18(17)19(21)7-8-20(21)23-12-2-11-22/h4,6,13,17-20,23-24H,2-3,5,7-12,22H2,1H3/t17-,18-,19+,20+,21+/m1/s1