4439-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4439-67-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,3 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4439-67:
(6*4)+(5*4)+(4*3)+(3*9)+(2*6)+(1*7)=102
102 % 10 = 2
So 4439-67-2 is a valid CAS Registry Number.
InChI:InChI=1/C18H21NO5/c1-4-19(5-2)7-9-23-18-16-12(6-8-22-16)15(21)14-13(20)10-11(3)24-17(14)18/h6,8,10,21H,4-5,7,9H2,1-3H3