97-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97-40-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 97-40:
(4*9)+(3*7)+(2*4)+(1*0)=65
65 % 10 = 5
So 97-40-5 is a valid CAS Registry Number.
InChI:InChI=1/C15H13N3O2.ClH/c1-10-8-13(18-16)14(20-2)9-12(10)17-15(19)11-6-4-3-5-7-11;/h3-9H,1-2H3;1H