17057-91-9 Usage
General Description
2,4,5-Trimethylnaphthalene is a polycyclic aromatic hydrocarbon (PAH) consisting of a naphthalene molecule with three methyl groups attached at the 2, 4, and 5 positions. It is a colorless solid with a characteristic odor and is insoluble in water. 2,4,5-Trimethylnaphthalene is primarily used as a chemical intermediate in the production of other organic compounds. It is also used as a fragrance ingredient in various consumer products, such as perfumes and air fresheners. However, 2,4,5-trimethylnaphthalene is considered to be a potential environmental and human health hazard, as it can persist in the environment and may be toxic to aquatic organisms. Therefore, proper precautions should be taken in handling and disposing of this chemical.
Check Digit Verification of cas no
The CAS Registry Mumber 17057-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,0,5 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17057-91:
(7*1)+(6*7)+(5*0)+(4*5)+(3*7)+(2*9)+(1*1)=109
109 % 10 = 9
So 17057-91-9 is a valid CAS Registry Number.