16561-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16561-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,5,6 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16561-28:
(7*1)+(6*6)+(5*5)+(4*6)+(3*1)+(2*2)+(1*8)=107
107 % 10 = 7
So 16561-28-7 is a valid CAS Registry Number.
InChI:InChI=1/C32H48O8/c1-7-8-9-10-11-12-13-14-25(35)40-32-26(29(32,5)6)23-16-22(18-33)17-30(37)24(15-19(2)27(30)36)31(23,38)20(3)28(32)39-21(4)34/h15-16,20,23-24,26,28,33,37-38H,7-14,17-18H2,1-6H3/t20-,23+,24-,26-,28-,30-,31-,32-/m1/s1