19974-78-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19974-78-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,7 and 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 19974-78:
(7*1)+(6*9)+(5*9)+(4*7)+(3*4)+(2*7)+(1*8)=168
168 % 10 = 8
So 19974-78-8 is a valid CAS Registry Number.
InChI:InChI=1/C20H23NO2.ClH/c1-15(22)23-18-13-8-14-21-20(18)19(16-9-4-2-5-10-16)17-11-6-3-7-12-17;/h2-7,9-12,18-21H,8,13-14H2,1H3;1H