1331-29-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1331-29-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,3 and 1 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1331-29:
(6*1)+(5*3)+(4*3)+(3*1)+(2*2)+(1*9)=49
49 % 10 = 9
So 1331-29-9 is a valid CAS Registry Number.
InChI:InChI=1/C8H8Cl2/c1-8(9,10)7-5-3-2-4-6-7/h2-6H,1H3