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Chemical Structure| 82-75-7 Chemical Structure| 82-75-7

Structure of 82-75-7

Chemical Structure| 82-75-7

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Product Details of [ 82-75-7 ]

CAS No. :82-75-7
Formula : C10H9NO3S
M.W : 223.25
SMILES Code : O=S(C1=C2C(N)=CC=CC2=CC=C1)(O)=O
MDL No. :MFCD00035730
InChI Key :CYJJLCDCWVZEDZ-UHFFFAOYSA-N
Pubchem ID :6722

Safety of [ 82-75-7 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319
Precautionary Statements:P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313

Application In Synthesis of [ 82-75-7 ]

* 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 [ 82-75-7 ]

[ 82-75-7 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 142-04-1 ]
  • [ 62-53-3 ]
  • [ 82-75-7 ]
  • [ 82-76-8 ]
  • 2
  • [ 62-53-3 ]
  • [ 82-75-7 ]
  • [ 82-76-8 ]
YieldReaction ConditionsOperation in experiment
94% With sulfuric acid; at 120 - 155℃;Industrial scale; So the metering groove 237 kg aniline by adding the pot, to start stirrer 441 kg concentration of greater than 98% of concentrated sulfuric acid, in the case of the vicious circle, by adding 300 kg of 1-naphthylamine-8-sulfonic acid to continue heating, dehydrating atmosphere.When the affect reach 120-130 C time, dehydration-end, to the volume of the material in the measurement, if it is lower than the normal volume, the aniline is added.Continued heating to 155 ±2 C, then maintaining 10-12 hours, sampling analysis, 1-naphthylamine-8-sulfonic acid content ? 0.6% to be qualified, the qualified to the vacuum distillation pot, otherwise prolonged holding time.Follow-up steps of the embodiment with the specific embodiment 1 the same.The embodiment of the preparation obtained N-phenyl-1-naphthylamine-8-sulfonic acid, its yield is 94%, the purity is 98%.
 

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