77642-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77642-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,4 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77642-19:
(7*7)+(6*7)+(5*6)+(4*4)+(3*2)+(2*1)+(1*9)=154
154 % 10 = 4
So 77642-19-4 is a valid CAS Registry Number.
InChI:InChI=1/C29H35NO5/c1-20-11-9-10-16-27(33)30-24(21-12-5-3-6-13-21)15-8-4-7-14-23(31)19-25(32)28-22(17-20)18-26(35-2)29(28)34/h3-6,8-13,16-17,22-24,26,31,34H,7,14-15,18-19H2,1-2H3,(H,30,33)/b8-4+,11-9+,16-10+,20-17+