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A18836 Amidosulfonic acid, 98+%

CAS Number

Stock No. Size Price ($) Quantity Availability
A18836-22 100g 24.00
A18836-36 500g 31.30
A18836-0E 2500g 79.20
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Amidosulfonic acid, 98+%


Chemical Properties

Formula Weight
Melting point
ca 205° dec.
Storage & Sensitivity
Ambient temperatures.
Slightly soluble in water, dimethyl fluoride and methanol. Insoluble in hydrocarbons.


Amidosulfonic acid is widely utilized as a green catalyst for the preparation of amide from ketoxime. It finds an application as a titrant in the determination of the burette injection volume and chemical calibration factor. It is an efficient catalyst in the synthesis of polyhydroquinoline derivatives by Hantzsch condensation reaction, deazaoxaflavin, fatty acid methyl and ethyl esters and in the isolation of 5-hydroxymethylfurfural (HMF) from bamboo fiber. It is involved in the determination of silicates in water samples. It acts as a neutralizing agent during the determination of paracetamol by Glynn and Kendal colorimetric method.


Incompatible with chlorine compounds, nitrates, carbonates, strong oxidizing agents and strong bases.

Literature References

Widely used to destroy excess HNO2 in diazotization reactions. Effective catalyst for acetylation of alcohols and phenols with acetic anhydride at room temperature: Synth. Commun., 28, 3173 (1998). Solvent-free tetrahydropyranylation of alcohols has been accomplished under mild conditions: Synth. Commun., 33, 3929 (2003). Catalyzes the addition-esterification of aliphatic carboxylic acids with cyclic olefins: Catal. Lett., 96, 71 (2004). For a brief feature on uses in synthesis, see: Synlett, 1342 (2005).

Kamal, A.; Babu, K. S.; Hussaini, S. M. A.; Srikanth, p. S.; Balakrishna, M.; Alarifi, A. Sulfamic acid: an efficient and recyclable solid acid catalyst for the synthesis of 4,5-dihydropyrrolo[1,2-a]quinoxalines. Tetrahedron Lett. 2015, 56 (31), 4619-4622.

Kamal, A.; Babu, K. S.; Vardhan, M. V. P. S. V.; Hussaini, S. M. A.; Mahesh, R.; Shaik, S. P.; Alarifi, A. Sulfamic acid promoted one-pot three-component synthesis and cytotoxic evaluation of spirooxindoles. Bioorg. Med. Chem. Lett. 2015, 25 (10), 2199-2202.

GHS Hazard and Precautionary Statements

Hazard Statements: H290-H315-H319

May be corrosive to metals. Causes skin irritation. Causes serious eye irritation.

Precautionary Statements: P234-P264b-P280g-P280i-P302+P352-P305+P351+P338-P332+P313-P337+P313-P362-P501c

Keep only in original container. Wash face, hands and any exposed skin thoroughly after handling Wear protective gloves. Wear eye/face protection. IF ON SKIN: Wash with plenty of soap and water. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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