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p-Hydrazinobenzenesulfonic Acid Hemihydrate (CAS 98-71-5 anhydrous)

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Alternate Names:
Phenylhydrazine-4-sulfonic Acid Hemihydrate
CAS Number:
98-71-5 anhydrous
Molecular Weight:
197.21
Molecular Formula:
C6H8N2O31/2H2O
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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p-Hydrazinobenzenesulfonic acid hemihydrate, also known as p-sulfobenzenesulfonyl hydrazide hemihydrate or PABSH hemihydrate, is a chemical compound with the molecular formula C6H8N2O5S•0.5H2O. It is an organic compound that belongs to the class of sulfonhydrazides. p-Hydrazinobenzenesulfonic Acid Hemihydrate hemihydrate is a white crystalline solid that is soluble in water. It is often used as a reagent in organic synthesis, particularly in the preparation of azo dyes. It can react with aromatic amines to form azo compounds, which are widely used as colorants in various industries.


p-Hydrazinobenzenesulfonic Acid Hemihydrate (CAS 98-71-5 anhydrous) References

  1. Flow-injection catalytic spectrophotometic determination of molybdenum(VI) in plants using bromate oxidative coupling of p-hydrazinobensenesulfonic acid with N-(1-naphthyl)ethylenediamine.  |  Nakano, S., et al. 2010. Talanta. 81: 786-91. PMID: 20298854
  2. An approach for an advanced anode interfacial layer with electron-blocking ability to achieve high-efficiency organic photovoltaics.  |  Yeo, JS., et al. 2014. ACS Appl Mater Interfaces. 6: 19613-20. PMID: 25343490
  3. High-Yielding Water-Soluble Asymmetric Cyanine Dyes for Labeling Applications.  |  Wolf, N., et al. 2020. J Org Chem. 85: 9751-9760. PMID: 32686416
  4. Highly efficient and stable planar perovskite solar cells with reduced graphene oxide nanosheets as electrode interlayer  |  Yeo, J. S., Kang, R., Lee, S., Jeon, Y. J., Myoung, N., Lee, C. L.,.. & Na, S. I. 2015. Nano Energy. 12: 96-104.
  5. The benefits of graphene for hybrid perovskite solar cells  |  Bouclé, J., & Herlin-Boime, N. 2016. Synthetic Metals. 222: 3-16.
  6. Hole‐transporting materials in inverted planar perovskite solar cells  |  Yan, W., Ye, S., Li, Y., Sun, W., Rao, H., Liu, Z.,.. & Huang, C. 2016. Advanced Energy Materials. 6(17): 1600474.
  7. Graphene in perovskite solar cells: device design, characterization and implementation  |  Acik, M., & Darling, S. B. 2016. Journal of Materials Chemistry A. 4(17): 6185-6235.
  8. The role of the interfaces in perovskite solar cells  |  Shao, S., & Loi, M. A. 2020. Advanced Materials Interfaces. 7(1): 1901469.
  9. Recent progress of graphene‐based materials for efficient charge transfer and device performance stability in perovskite solar cells  |  Safie, N. E., Azam, M. A., Aziz, M. F., & Ismail, M. 2021. International Journal of Energy Research. 45(2): 1347-1374.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

p-Hydrazinobenzenesulfonic Acid Hemihydrate, 25 g

sc-489851
25 g
$74.00