66451-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66451-66-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,5 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 66451-66:
(7*6)+(6*6)+(5*4)+(4*5)+(3*1)+(2*6)+(1*6)=139
139 % 10 = 9
So 66451-66-9 is a valid CAS Registry Number.
InChI:InChI=1/C6H11ClO5/c7-1-3(9)5(11)6(12)4(10)2-8/h3,5-6,8-9,11-12H,1-2H2/t3-,5-,6-/m1/s1