99845-90-6 Usage
Uses
Used in Organic Synthesis:
Bis-(5-methyl-thiophen-2-yl)-methanone is used as a building block in the synthesis of various organic compounds, contributing to the creation of a wide range of chemical products due to its versatile chemical structure.
Used in Perfumery and Fragrance Industry:
Leveraging its aromatic properties, Bis-(5-methyl-thiophen-2-yl)-methanone is used as a fragrance ingredient in the production of perfumes and other scented products, enhancing their olfactory profiles.
Used in Pharmaceutical Industry:
In the realm of medicinal chemistry, Bis-(5-methyl-thiophen-2-yl)-methanone is employed as a key intermediate in the synthesis of pharmaceutical drugs, playing a crucial role in the development of new medications.
Check Digit Verification of cas no
The CAS Registry Mumber 99845-90-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,4 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99845-90:
(7*9)+(6*9)+(5*8)+(4*4)+(3*5)+(2*9)+(1*0)=206
206 % 10 = 6
So 99845-90-6 is a valid CAS Registry Number.
99845-90-6Relevant academic research and scientific papers
Synthesis of new sulfur heteroaromatics isoelectronic with dibenzo[g,p]chrysene by photocyclization of thienyl- and phenyl-substituted ethenes
Fischer, Erik,Larsen, Jan,Christensen, Jorn B.,Fourmigue, Marc,Madsen, Hans G.,Harrit, Niels
, p. 6997 - 7005 (2007/10/03)
A series of new sulfur heteroarenes, isoelectronic with dibenzo[g,p]chrysene, have been prepared by double photocyclization of the corresponding tetraaryl substituted ethenes. The first step proceeds efficiently in each case, and the corresponding intermediate sulfur heteroarenes, isoelectronic with phenanthrene, have been isolated. The second ring closure is only efficient when one of the participating aryl substituents is thienyl, which thus manifests a higher electron density on the carbon atom involved in the excited singlet state reaction. Most of the new compounds are of minimal solubility in common solvents and do not display improved electron donor properties otherwise commonly found among heteroaromatics.
