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556971 Sigma-Aldrich

2,4-Dinitrobenzenesulfonic acid hydrate

  • CAS Number 698999-22-3

  • Linear Formula (O2N)2C6H3SO3H · xH2O

  • Molecular Weight 248.17 (anhydrous basis)

  •  MDL number MFCD00066017

  •  PubChem Substance ID 24879598

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Properties

Related Categories Building Blocks, Chemical Synthesis, Organic Building Blocks, Sulfonic/Sulfinic Acids, Sulfur Compounds More...
InChI Key   OVOJUAKDTOOXRF-UHFFFAOYSA-N
mp   95-98 °C (lit.)

Description

Packaging

5, 25 g in glass bottle

Application

2,4-Dinitrobenzenesulfonic acid hydrate may be used in the synthesis of the corresponding α-hydroxyketone. It can be used as a catalyst in the amidation reaction, which involves the conversion of secondary-benzylic alcohols to N-benzylacetamides. It may also be used to prepare 1-octyl-2-pyrrolidinonium 2,4-dinitrobenzenesulfonate ([NOP][DNBSA]), a Brønsted-acidic ionic liquid, which can catalyze the synthesis of trioxane.

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 3261 8 / PGII
WGK Germany 
3

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Protocols & Articles
Peer-Reviewed Papers
15

References

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