17233-65-7 Usage
General Description
(E)-2,2'-vinylenebis[5-methylbenzoxazole] is a chemical compound that belongs to the class of benzoxazole derivatives. It is a white to light yellow solid with a molecular formula C24H16N2O2 and a molecular weight of 364.39 g/mol. (E)-2,2'-vinylenebis[5-methylbenzoxazole] is primarily used as a fluorescent whitening agent in various industrial applications, such as in the production of plastics, fibers, coatings, and printing inks. It functions by absorbing ultraviolet light and re-emitting it as visible blue light, thereby enhancing the whiteness and brightness of the products. Additionally, it has been reported to have potential biological activities, including antioxidant, antimicrobial, and antiviral properties, which make it a valuable research compound in the fields of pharmaceuticals and agrochemicals. However, its use and handling should be done with caution, as it may have harmful effects on human health and the environment.
Check Digit Verification of cas no
The CAS Registry Mumber 17233-65-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,2,3 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 17233-65:
(7*1)+(6*7)+(5*2)+(4*3)+(3*3)+(2*6)+(1*5)=97
97 % 10 = 7
So 17233-65-7 is a valid CAS Registry Number.
17233-65-7Relevant articles and documents
Process for the preparation of bis-benzazolyl compounds
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Page/Page column 3, (2008/06/13)
The present invention provides a process for the preparation of a compound of formula (I) wherein Y represents —O—, —S— or —N(R2)—, R2 being hydrogen, C1-C10alkyl or aralkyl; Z represents a 2,5-furanyl, 2,5-thiophenyl, 4,4′-stilbenyl or a 1,2-ethyleny residue and R1 represents hydrogen, halogen, C1-C10alkoxyl, cyano, COOM or SO3M, M being hydrogen or an alkaline or alkaline earth metal, characterized by reacting a compound of formula (II) with a dicarboxylic acid of formula (III): HOOC-Z-COOH, or an ester thererof, Y, Z and R1 being as previously defined, in N-methylpyrrolidone or N,N-dimethylacetamide, in the presence of an acidic catalyst and, optionally, in the presence of a secondary solvent capable of removing water from the reaction mixture, which are useful as optical whitening agents for natural and synthetic materials.
