4373-13-1 Usage
Description
3,4-Dihydro-1-methylnaphthalene, commonly known as tetralin, is a colorless liquid with a faint odor. It is a chemical compound that is produced through the hydrogenation of naphthalene. Tetralin is used as a solvent, a chemical intermediate, and a fuel additive. It is also used in the production of dyes, as well as in the synthesis of certain pharmaceuticals and pesticides. Additionally, it is used as a carrier solvent in some consumer products, such as adhesives and coatings. Tetralin is considered to have low toxicity, but exposure to high levels may cause irritation to the eyes, skin, and respiratory system.
Uses
Used in Chemical Industry:
3,4-Dihydro-1-methylnaphthalene is used as a solvent for various chemical processes. Its solubility properties make it suitable for dissolving a wide range of substances, facilitating chemical reactions and separations.
Used in Pharmaceutical Industry:
Tetralin is used as a chemical intermediate in the synthesis of certain pharmaceuticals. Its unique chemical structure allows it to be a key component in the production of specific drugs.
Used in Pesticide Industry:
3,4-Dihydro-1-methylnaphthalene is used in the synthesis of certain pesticides. Its ability to dissolve and interact with other chemicals makes it a valuable component in the formulation of effective pest control products.
Used in Dye Production:
Tetralin is used in the production of dyes. Its chemical properties contribute to the color and stability of various dyes used in different industries.
Used as a Fuel Additive:
3,4-Dihydro-1-methylnaphthalene is used as a fuel additive to improve the performance and efficiency of fuels. Its properties can enhance the combustion process and reduce emissions.
Used in Consumer Products:
Tetralin is used as a carrier solvent in some consumer products, such as adhesives and coatings. Its ability to dissolve other substances and its low toxicity make it a suitable component in these products.
Check Digit Verification of cas no
The CAS Registry Mumber 4373-13-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,7 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4373-13:
(6*4)+(5*3)+(4*7)+(3*3)+(2*1)+(1*3)=81
81 % 10 = 1
So 4373-13-1 is a valid CAS Registry Number.
4373-13-1Relevant articles and documents
Photochemistry of 3-methyl- and 4-methyl-1,2-dihydronaphthalene in the gas phase1
Duguid, Robert J.,Morrison, Harry
, p. 1271 - 1281 (2007/10/02)
The photochemistry of 3-methyl-1,2-dihydronaphthalene (3-MDHN) and 4-methyl-1,2-dihydronaphthalene (4-MDHN) has been studied in the gas phase. Photolysis of 3-MDHN with 254-nm light produces 2-methyl-1,2-dihydronaphthalene (2-MDHN) as the major primary product. Naphthalene is also formed, apparently as a secondary photoproduct from 2-MDHN. Addition of butane to the photolysis mixture quenches the formation of 2-MDHN while producing a new photoproduct, 1-isopropenylbenzocyclobutene (IBCB). This product is also formed when light centered at 300 nm is used for the photolysis. Photolysis of 4-MDHN vapor with 254-nm light gives three products unique to the gas phase: 1-isopropenyl-2-vinylbenzene (IVB), 3-(o-tolyl)-1,2-butadiene (T12B), and 1-methyl-1,2-dihydronaphthalene (1-MDHN). An apparent alkyl shift product, 3-methyl-1,2-dihydronaphthalene (3-MDHN), and naphthalene are also formed, apparently as secondary photolysis products from 1-MDHN. In addition, several photoproducts common to both the solution and gas phase are detected: 2-(o-tolyl)-1,3-butadiene (T13B), 1-methylbenzobicyclo[3.1.0]hex-2-ene (1-MBBH), 1-methyl-1,4-dihydronaphthalene (1-M-1,4-DHN), 1-methyltetralin (1-MT), and 1-methylnaphthalene (1-MN). Again, the presence of butane during the 254-nm photolysis, or the use of longer wavelength light, gives rise to a new photoproduct, 1-methyl-1-vinylbenzocyclobutene (MVBCB). The fluorescence excitation spectrum for 4-MDHN confirms that 254-nm excitation into S2 leads to minimal population of the emissive vibrational levels of S1. Two pathways appear to dominate the photochemistry: retro [4 + 2] cycloaddition to give o-quinodimethane intermediates and sequential hydrogen shifts. These pathways derive from S2 and/or upper vibrational levels of S1 (S1vib) as indicated by the characteristic responses of their ultimate products to the presence of buffer gas. The benzocyclobutenes are unique; they are postulated to arise through a 2 + 2 closure of a vibrationally relaxed precursor o-quinodimethane or via a [1,3] sigmatropic shift in a uniquely populated set of S1vib levels.
