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Indeno[2,1-a]phenalene is a polycyclic aromatic hydrocarbon (PAH) consisting of a fused ring system with a molecular formula of C17H10. It is characterized by the presence of a benzene ring attached to an indeno structure, which is a seven-membered ring with a double bond. indeno[2,1-a]phenalene is known for its unique electronic properties and potential applications in materials science, such as in the development of organic semiconductors and optoelectronic devices. Due to its complex structure, indeno[2,1-a]phenalene is also of interest in chemical research for understanding the behavior of PAHs and their environmental impact.

200-71-5

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200-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200-71-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,0 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 200-71:
(5*2)+(4*0)+(3*0)+(2*7)+(1*1)=25
25 % 10 = 5
So 200-71-5 is a valid CAS Registry Number.

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