4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile]
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![4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile] structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220811/85ef50ca37b14e56becc5563dcf39845.png "4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile]")
4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile]
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CAS No:
13001-40-6
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Formula:
C24H16N2
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Chemical Name:
4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile]
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Synonyms:
Benzonitrile,4,4′-(1,4-phenylenedi-2,1-ethenediyl)bis-;Benzonitrile,4,4′-(p-phenylenedivinylene)di-;4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile];1,4-Bis(p-cyanostyryl)benzene;C.I. Fluorescent Brightener 199;Palanil Brilliant White R;Fluorescent Brightener 199;C.I. 40705;1,4-Bis(4-cyanostyryl)benzene;Ultraphor RN;Blankophor ER;4,4′-(p-Phenylenediethene-2,1-diyl)bisbenzonitrile;58449-88-0
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CAS No:
4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile] Basic Attributes
332.4
332.40
235-836-7
2926909090
Characteristics
47.6
5.9
Light yellow
1.18±0.1 g/cm3(Predicted)
278-279 °C
571.3±50.0 °C(Predicted)
272.8ºC
1.66
4.61E-13mmHg at 25°C
4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile] Use and Manufacturing
Add 1 000 kg of solvent methoxyethyl acetate into the condensation kettle, start stirring, add 134 kg of terephthalaldehyde and 560 kg of 2-(bisethylphosphonomethyl)-benzonitrile. After stirring, add 500 kg of 30% sodium methoxide methanol solution, react at 50 ℃ for 4 h, cool to below 20 ℃, add salt to crystallize. After centrifugal separation, the filter cake was washed with water and filtered to obtain a crude product. Recrystallization gives yellow-green crystals. Grind the pure product, leveling agent, and an appropriate amount of water together to form a 10% suspension to obtain the fluorescent whitening agent ER.
It is suitable for whitening and brightening of polyester (polyester) fibers, and also has a good whitening effect on plastics and products such as polyethylene and polypropylene.
Computed Properties
Molecular Weight:332.4
XLogP3:5.9
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:4
Exact Mass:332.131348519
Monoisotopic Mass:332.131348519
Topological Polar Surface Area:47.6
Heavy Atom Count:26
Complexity:520
Defined Bond Stereocenter Count:2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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4,4′-(1,4-Phenylenedi-2,1-ethenediyl)bis[benzonitrile]
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