139403-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139403-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,0 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139403-31:
(8*1)+(7*3)+(6*9)+(5*4)+(4*0)+(3*3)+(2*3)+(1*1)=119
119 % 10 = 9
So 139403-31-9 is a valid CAS Registry Number.
InChI:InChI=1/C23H40O5/c1-4-5-6-16(2)11-19(24)7-8-20-21-13-17(12-18(21)14-22(20)25)9-10-28-15-23(26)27-3/h7-8,16-22,24-25H,4-6,9-15H2,1-3H3/b8-7+/t16-,17?,18-,19+,20+,21-,22+/m0/s1