28057-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28057-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,5 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 28057-72:
(7*2)+(6*8)+(5*0)+(4*5)+(3*7)+(2*7)+(1*2)=119
119 % 10 = 9
So 28057-72-9 is a valid CAS Registry Number.
InChI:InChI=1/C31H40O8/c1-16(2)28(35)39-27-19-12-18-20(31(6,25(19)34)22(29(27,3)4)14-23(32)36-7)8-10-30(5)21(18)13-24(33)38-26(30)17-9-11-37-15-17/h9,11-12,15-16,19-22,26-27H,8,10,13-14H2,1-7H3/t19-,20-,21-,22-,26-,27+,30+,31-/m0/s1