28913-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28913-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,9,1 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 28913-23:
(7*2)+(6*8)+(5*9)+(4*1)+(3*3)+(2*2)+(1*3)=127
127 % 10 = 7
So 28913-23-7 is a valid CAS Registry Number.
InChI:InChI=1/C23H30O4S/c1-5-23(24)13-11-21-20-8-6-16-14-17(27-28(25,26)15(2)3)7-9-18(16)19(20)10-12-22(21,23)4/h1,7,9,14-15,19-21,24H,6,8,10-13H2,2-4H3/t19-,20-,21+,22+,23+/m1/s1