19891-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19891-53-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,9 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19891-53:
(7*1)+(6*9)+(5*8)+(4*9)+(3*1)+(2*5)+(1*3)=153
153 % 10 = 3
So 19891-53-3 is a valid CAS Registry Number.
InChI:InChI=1/C18H20O6/c1-4-9-7-5-10-13-17(2,8(7)6-11(19)22-9)15-12(24-15)14(20)18(13,3)16(21)23-10/h6,10,12-15,20H,4-5H2,1-3H3/t10-,12-,13-,14+,15-,17-,18-/m1/s1