68191-39-9 Usage
Uses
Used in Chemical Industry:
Benzoic acid,2,2'-[1,4-phenylenebis(carbonylimino)]bis-, dimethyl ester (9CI) is used as a chemical intermediate for the production of dyes, perfumes, and pharmaceuticals. Its versatile chemical structure allows it to be a key component in the synthesis of a wide range of organic compounds.
Used in Preservative Production:
Due to its antimicrobial properties, Benzoic acid,2,2'-[1,4-phenylenebis(carbonylimino)]bis-, dimethyl ester (9CI) is used in the production of preservatives for various products. This helps to extend the shelf life and maintain the quality of products in different industries.
It is important to handle and use Benzoic acid,2,2'-[1,4-phenylenebis(carbonylimino)]bis-, dimethyl ester (9CI) with caution and in accordance with safety guidelines to ensure its safe and effective application in various industries.
Check Digit Verification of cas no
The CAS Registry Mumber 68191-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,1,9 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68191-39:
(7*6)+(6*8)+(5*1)+(4*9)+(3*1)+(2*3)+(1*9)=149
149 % 10 = 9
So 68191-39-9 is a valid CAS Registry Number.
68191-39-9Relevant academic research and scientific papers
Preparation method for bisbenzoxazinone ultraviolet absorber
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Paragraph 0021-0022; 0026-0030; 0031-0032, (2019/11/21)
The invention discloses a preparation method for a bisbenzoxazinone ultraviolet absorber. The preparation method comprises the following steps: (1) reacting terephthalic acid with methyl anthranilatein the presence of a catalyst and an inert solvent to obtain a methyl bisamide ester intermediate; and (2) subjecting the methyl bisamide ester intermediate to heating, reflux and ring closure in thionyl chloride to obtain the bisbenzoxazinone ultraviolet absorber. The preparation method of the invention adopts borate as a catalyst and eliminates an inorganic alkali reagent through dehydration amidation so as to eliminate metal ion residues from the source; the results of metal ion residue analysis show that the residues of common metal ions such as sodium, potassium, iron, chromium and aluminum are all 50 ppm or below; so the use of post-treatment reclaimed water is significantly reduced, by-produced inorganic salts and salty wastewater are eliminated, and the generation and discharge ofwaste water, waste gas and industrial residues are reduced.
