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[ CAS No. 91-95-2 ] {[proInfo.proName]}

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Cat. No.: {[proInfo.prAm]}
Chemical Structure| 91-95-2
Chemical Structure| 91-95-2
Structure of 91-95-2 * Storage: {[proInfo.prStorage]}

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Quality Control of [ 91-95-2 ]

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Product Details of [ 91-95-2 ]

CAS No. :91-95-2 MDL No. :MFCD00007725
Formula : C12H14N4 Boiling Point : -
Linear Structure Formula :(NH2)2C6H3C6H3(NH2)2 InChI Key :HSTOKWSFWGCZMH-UHFFFAOYSA-N
M.W : 214.27 Pubchem ID :7071
Synonyms :
3,3′-Diaminobenzidine
Chemical Name :[1,1'-Biphenyl]-3,3',4,4'-tetraamine

Safety of [ 91-95-2 ]

Signal Word:Danger Class:N/A
Precautionary Statements:P201-P202-P264-P270-P280-P301+P312+P330-P305+P351+P338-P308+P313-P337+P313-P405-P501 UN#:N/A
Hazard Statements:H302-H319-H341-H350 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 91-95-2 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 91-95-2 ]

[ 91-95-2 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 91-95-2 ]
  • [ 67515-55-3 ]
  • 2,2'-bis(4-fluoro-3-(trifluoromethyl))-5,5'-bibenzimidazole [ No CAS ]
YieldReaction ConditionsOperation in experiment
With methanesulfonic acid; phosphorus pentoxide; at 130℃; for 5h; [Example]; 3.756g (10.430 mmol) of 3,3'-diaminobenzidine tetrahydrochloride dehydrate and 4.430g (20.854 mmol) of <strong>[67515-55-3]4-fluoro-3-(trifluoromethyl) benzoic acid</strong> were dissolved in 50D of PPMA(phosphorous pentoxide/methansulfonic acid), followed by reaction at 130C for 5 hours. The reaction solution was poured in 1 M of sodium hydroxide. The precipitate was filtered and the filtrate was washed with hot distilled water several times. The filtrate was dried at 100C in a vacuum oven for over 12 hours, followed by recrystalization with ethanol, resulting in 5.05 g of pure benzimidazole (2,2'-bis(4-fluoro-3-(trifluoromethyl)) -5,5'-bibenzimidazole). The reaction formula is shown below. The chemical structure of the obtained benzimidazole was confirmed by 'H-NMR.'H-NMRflDMSO-d ): 8.18-8.07(m, 2H), 7.45(d, 1H), 7.35-7.23(m, 2H), 7.19-7.12(m, 1H)
  • 2
  • [ 91-95-2 ]
  • [ 37091-73-9 ]
  • N3,N3',N4,N4'-tetrakis(1,3-dimethyIimidazolidin-2-ylidene)-[1,1'-biphenyl]-3,3',4,4'-tetraamine [ No CAS ]
YieldReaction ConditionsOperation in experiment
68% With triethylamine; In acetonitrile; at 20℃; for 48h;Inert atmosphere; 2.00 g (11.83 mmol) 2-chloro-l,3~dimethyl-4,5-dihydro-lH-imidazol-3-ium chloride (II) in 10 mL acetonitrile were added to a suspension of 0.61 g (2.85 mmol) biphenyl-3,3',4,41- tetraamine in 20 mL acetonitrile and 4.6 mL triethylamme under argon atmosphere. The mixture was stirred for 2 days at room temperature. After filtration of the precipitate and distillation of the solvent, the residue was suspended in 2 M sodium hydroxide solution and stirred for 5 minutes at 45 °C. 1.17 g (1.95 mmol; 68 percent) off-white solid were obtained after filtration, washing with water and drying in vacuo. The product was purified, by gradient sublimation for analytical characterisation.
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