97284-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97284-34-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,8 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97284-34:
(7*9)+(6*7)+(5*2)+(4*8)+(3*4)+(2*3)+(1*4)=169
169 % 10 = 9
So 97284-34-9 is a valid CAS Registry Number.
97284-34-9Relevant articles and documents
Synthesis of 1-Azapyrene
Tanga, Mary J.,Reist, Elmer J.
, p. 747 - 752 (2007/10/02)
The environmental contaminants 1-azapyrene 15, 2-azapyrene 13 and several other azapyrene derivatives were synthesized from a common intermediate, 2,2a,3,4-tetrahydrocyclopentaphenalen-1-one oxime 6.The synthesis of 1-azapyrene 15 completes the series of azapyrenes.