19420-38-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19420-38-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,2 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 19420-38:
(7*1)+(6*9)+(5*4)+(4*2)+(3*0)+(2*3)+(1*8)=103
103 % 10 = 3
So 19420-38-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H10N2O3/c1-11(2)9(13)12-7-5-3-4-6-8(7)15-10(12)14/h3-6H,1-2H3