7442-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7442-13-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,4 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7442-13:
(6*7)+(5*4)+(4*4)+(3*2)+(2*1)+(1*3)=89
89 % 10 = 9
So 7442-13-9 is a valid CAS Registry Number.
InChI:InChI=1/3CH3.Pb/h3*1H3;/q;;;+1/rC3H9Pb/c1-4(2)3/h1-3H3/q+1