42498-58-8 Usage
Uses
Used in Chemical Production Industry:
2,3,5,6-tetrahydro-2-methylphthalic anhydride is used as a key component in the synthesis of various chemical products for its high reactivity and ability to form crosslinked polymer networks.
Used as a Curing Agent in Epoxy Resin Industry:
2,3,5,6-tetrahydro-2-methylphthalic anhydride is used as a curing agent for epoxy resins, where it reacts with the resin to create a robust crosslinked polymer network, enhancing the strength and durability of the final product.
Used in Synthesis of Other Chemical Compounds:
2,3,5,6-tetrahydro-2-methylphthalic anhydride serves as a building block in the synthesis of a variety of other chemical compounds, contributing to the versatility and utility of 2,3,5,6-tetrahydro-2-methylphthalic anhydride in the chemical industry.
Check Digit Verification of cas no
The CAS Registry Mumber 42498-58-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,9 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 42498-58:
(7*4)+(6*2)+(5*4)+(4*9)+(3*8)+(2*5)+(1*8)=138
138 % 10 = 8
So 42498-58-8 is a valid CAS Registry Number.
42498-58-8Relevant academic research and scientific papers
Conformational Equilibrium in 8-Methyl-cis-2-thiahydrindane and 8-Methyl-cis-2-oxahydrindane by 13C NMR Spectroscopy
Willer, Rodney L.
, p. 261 - 265 (2007/10/02)
The preferred conformation of 8-methyl-cis-thiahydrindane has been both estimated by 13C NMR chemical shifts and determined by low temperature 13C NMR spectroscopy to be the conformer with the methyl group equatorial with respect to the cyclohexane ring.This result is in disagreement with the interpretation of the temperature dependence of the CD spectra of (+) and (-) 8-methyl-cis-2-thiahydrindane, whereby the conformation with the methyl group axial with respect to the cyclohexane ring was claimed to be the preferred conformation.The preferred conformation of the related oxygen heterocycle, 8-methyl-cis-2-oxahydrindane, has been estimated by 13C NMR chemical shifts to be the conformer with the methyl group axial with respect to the cyclohexane ring.Possible reasons for these observations are discussed.
