204-91-1 Usage
General Description
DINAPHTHO[2,1-B:2',3'-D]FURAN is a chemical compound with a fused ring structure consisting of two naphthalene rings connected to a furan ring. It is a polycyclic aromatic hydrocarbon (PAH) that is often formed as a byproduct of incomplete combustion of organic materials, such as fossil fuels and wood. DINAPHTHO[2,1-B:2',3'-D]FURAN has been identified as a potential environmental pollutant and carcinogen, and has been the subject of research and regulatory interest due to its potential health effects. Studies have shown that exposure to DINAPHTHO[2,1-B:2',3'-D]FURAN can lead to adverse health effects, including respiratory problems and an increased risk of cancer. As a result, there is ongoing research into the sources, distribution, and health impacts of this chemical compound.
Check Digit Verification of cas no
The CAS Registry Mumber 204-91-1 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 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 204-91:
(5*2)+(4*0)+(3*4)+(2*9)+(1*1)=41
41 % 10 = 1
So 204-91-1 is a valid CAS Registry Number.
