19756-52-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19756-52-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,5 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19756-52:
(7*1)+(6*9)+(5*7)+(4*5)+(3*6)+(2*5)+(1*2)=146
146 % 10 = 6
So 19756-52-6 is a valid CAS Registry Number.
InChI:InChI=1/C28H29NO4/c1-5-15(3)17-11-12-22(20(13-17)16(4)6-2)33-23-14-21(30)24-25(26(23)29)28(32)19-10-8-7-9-18(19)27(24)31/h7-16,30H,5-6,29H2,1-4H3