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CS-W001157 4
Total: USD 88.00

4-Aminobenzene-1,3-disulfonic acid

  • CAS No. 137-51-9

  • Cat. No. CS-W022079
  • Purity≥97%
  • MDL No.MFCD00035903

*For research and further manufacturing use only, not for direct human use.

4-Aminobenzene-1,3-disulfonic acid|CS-W022079

Structure of 137-51-9

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General Information

  • CAS No. 137-51-9
  • Cat. No. CS-W022079
  • Purity ≥97%
  • MDL No. MFCD00035903
  • Storage 4°C
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₆H₇NO₆S₂
  • Molecular Weight 253.24
  • Synonym(s) 3-Benzenedisulfonicacid,4-amino-1
  • SMILES O=S(=O)(O)C1=CC=C(N)C(=C1)S(=O)(=O)O

Description

4-Aminobenzene-1,3-disulfonic acid features a para-amino group flanked by two sulfonic acid functionalities, conferring high water solubility and strong acidity. This combination enables effective use in dye synthesis, ion-exchange resins, and as a building block for functionalized aromatic systems under standard aqueous conditions.

Application

4-Aminobenzene-1,3-disulfonic acid serves as a versatile building block for sulfonated aromatic scaffolds, enabling the synthesis of dyes, pharmaceutical intermediates, and functional materials. Its dual sulfonic acid groups enhance water solubility and facilitate electrophilic substitution reactions, while the primary amine permits conjugation via acylation, diazotization, or coupling. Bench-stable and readily purified by recrystallization, it functions reliably in multi-step syntheses requiring precise functional group handling.

Synthesis

  • Route1
    • α-Pyridone Levetiracetam Impurity|CS-0213990
      142-08-5
    • null|null
      108-77-0
    • ~%
    • In-stock
      4-Aminobenzene-1,3-disulfonic acid|CS-W022079
      137-51-9

    References

    • US4039523 A1, ;
  • Route2
    • null|null
      121-57-3
    • ~%
    • In-stock
      4-Aminobenzene-1,3-disulfonic acid|CS-W022079
      137-51-9

    References

    • Chemische Berichte, , vol. 21, p. 3413
  • Route3

    References

    • Justus Liebigs Annalen der Chemie, , vol. 198, p. 10

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS05
Signal Word : Danger
UN#: 3261
Class : 8
Packing Group : Ⅲ
Hazard Statements : H302-H314
Precautionary Statements : P260-P264-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P363-P405-P501

Quality Control

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Computational Chemistry Data

  • TPSA   134.76
  • LogP   -0.2378
  • H_Acceptors   5
  • H_Donors   3
  • Rotatable_Bonds   2

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