4889-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4889-84-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,8 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4889-84:
(6*4)+(5*8)+(4*8)+(3*9)+(2*8)+(1*4)=143
143 % 10 = 3
So 4889-84-3 is a valid CAS Registry Number.
InChI:InChI=1/C20H28O4/c1-20-9-17(23)19-13-5-3-12(22)8-11(13)2-4-14(19)15(20)6-7-16(20)18(24)10-21/h8,13-17,19,21,23H,2-7,9-10H2,1H3/t13-,14-,15-,16+,17-,19+,20-/m0/s1