25657-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25657-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,5 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 25657-09:
(7*2)+(6*5)+(5*6)+(4*5)+(3*7)+(2*0)+(1*9)=124
124 % 10 = 4
So 25657-09-4 is a valid CAS Registry Number.
InChI:InChI=1/C18H32O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17(22-21)18(19)20/h6-7,9-10,17,21H,2-5,8,11-16H2,1H3,(H,19,20)/b7-6+,10-9+