57835-92-4 Usage
Description
4-Nitropyrene is a nitro-substituted polycyclic aromatic hydrocarbon (PAH) that exists as orange needles at room temperature. It is practically insoluble in water but soluble in organic solvents such as acetone, benzene, dimethyl sulfoxide, and methylene chloride.
Uses
Used in Laboratory Chemical Applications:
4-Nitropyrene is used as a laboratory chemical for various research purposes. It has not been found to have any commercial applications, as per the International Agency for Research on Cancer (IARC) in 1989.
Used in Environmental Monitoring:
4-Nitropyrene, being a PAH pollutant, is monitored in ambient air quality assessments. For instance, it was found in the ambient air of the Arctic town Longyearbyen, Svalbard, indicating its relevance in environmental studies and pollution control.
Used in Chemical Research:
4-Nitropyrene's chemical properties, including its solubility in organic solvents and its structure as a nitro-substituted PAH, make it a subject of interest in chemical research. This can involve studying its reactions, stability, and potential applications in various chemical processes.
Safety Profile
Confxmed carcinogen
with experimental carcinogenic data.
Mutation data reported. When heated to
decomposition it emits toxic fumes of NOx.
Carcinogenicity
4-Nitropyrene is reasonably anticipated to be a human carcinogenbased on sufficient evidence of carcinogenicity from studies in experimental animals.
Check Digit Verification of cas no
The CAS Registry Mumber 57835-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,8,3 and 5 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57835-92:
(7*5)+(6*7)+(5*8)+(4*3)+(3*5)+(2*9)+(1*2)=164
164 % 10 = 4
So 57835-92-4 is a valid CAS Registry Number.
57835-92-4Relevant articles and documents
Effect of the blocked-sites phenomenon on the heterogeneous reaction of pyrene with N2O5/NO3/NO2
Zhang, Peng,Sun, Wanqi,Yang, Bo,Shu, Jinian,Dong, Liang
, p. 10358 - 10364 (2016/02/05)
To clarify whether the blocking reaction sites problem has a significant impact on heterogeneous reactions, experiments contrasting the order of pyrene (PY) particles' exposure to N2O5-O3 or O3-N2O5 in a heterogeneous process were conducted. Additionally, PY particles were exposed to N2O5 (～8 ppm) in the presence of O3 (2.5-30 ppm) in a reaction chamber at ambient pressure and room temperature. Our results show that the phenomenon of blocking reaction sites may be ubiquitous on the surfaces of atmospheric aerosol particles, and the N2O5-initiated ionic electrophilic nitration may be promoted by NO3 radical-initiated heterogeneous reactions on the aerosol particle surface. We also found that the operative reaction mechanism strongly depends on the concentrations of the nitric oxides in the atmosphere. Our results provide an explanation as to why 2-nitropyrene (2-NPY), one of the most ubiquitous nitro-polyaromatic hydrocarbon pollutants that exists in both the gas and particle phases, was not observed in previous experiments on the heterogeneous reactions of PY and N2O5/NO3/NO2.
