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Cyclopent[fg]acenaphthylene is a polycyclic aromatic hydrocarbon (PAH) consisting of two fused benzene rings with a cyclopentane ring attached to one of the benzene rings. This organic compound is characterized by its unique molecular structure, which features a five-membered carbon ring (cyclopentane) fused to the acenaphthylene core. Cyclopent[fg]acenaphthylene is known for its potential environmental and health impacts, as PAHs are often found in polluted air, water, and soil, and can be carcinogenic. The compound's chemical formula is C17H12, and it is a member of the larger family of acenaphthylene derivatives. Due to its complex structure and potential risks, research on cyclopent[fg]acenaphthylene focuses on understanding its formation, detection, and mitigation in various environmental contexts.

187-78-0

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187-78-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187-78-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,8 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 187-78:
(5*1)+(4*8)+(3*7)+(2*7)+(1*8)=80
80 % 10 = 0
So 187-78-0 is a valid CAS Registry Number.

187-78-0Downstream Products

187-78-0Relevant academic research and scientific papers

Flash vacuum thermolysis of 5-(1-chloroethenyl)acenaphthene. A short synthesis of pyracylene and its bechaviour under high temperature conditions

Sarobe, Martin,Flink, Simon,Jenneskens, Leonardus W.,Zwikker, Jan W.,Wesseling, Jolanda

, p. 2125 - 2132 (2007/10/03)

Flash vacuum thermolysis (FVT) of 5-(1-chloroethenyl)acenaphthene (4) has been found to give rise to pyracylene (1).Pure 1 can be isolated from the 1100 deg C pyrolysate by recrystallization at -20 deg C.The temperature conversion data reveal that 1 decomposes and rearranges at T 1000 deg C; acenaphthylene (11), 1-ethynyl- (23) and 3-ethynyl-acenaphthylene (24) have been identified.The formation of 23 and 24 indicates that 1 rearranges to the transient cyclopentacenaphthylene (20) via a single ring-contraction-ring-expansion mechanism under FVT conditions.The experimental data are supported by semiempirical AM1 calculations of the C14H8 potential energy surface.

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