Hydroquinonesulfonic acid potassium salt
Hydroquinonesulfonic acid potassium salt (CAS: 21799-87-1) is an organic sulfur compound with the linear formula (HO)2C6H3SO3K and a molecular weight of 228.26 g/mol. This chemical serves as a valuable building block in organic synthesis. Its utility spans various chemical research and development applications, particularly where a sulfonic acid functionality on a hydroquinone core is required. Tech Serve Solutions supplies this compound for laboratory and industrial use.
- IUPAC
- 2,5-Dihydroxybenzenesulfonic acid potassium salt,Potassium 2,5-dihydroxybenzenesulfonate
- Synonyms
- 2,5-Dihydroxybenzenesulfonic acid potassium saltPotassium 2,5-dihydroxybenzenesulfonate

Organic Synthesis Intermediate
Hydroquinonesulfonic acid potassium salt functions as a key intermediate in the synthesis of more complex organic molecules. It can be utilised in reactions requiring a functionalised aromatic ring with both hydroxyl and sulfonic acid groups.
Chemical Research and Development
This compound is employed in R&D laboratories for exploring novel chemical pathways and developing new materials. Its specific structure allows for unique reactivity in various organic transformations.
Building Block for Functional Materials
The presence of both sulfonic acid and hydroxyl groups makes it a potential precursor for the development of functional materials, such as polymers or dyes, where these functionalities can be exploited.
| Molecular weight | 228.26 |
|---|---|
| Linear formula | (HO)2C6H3SO3K |
| Melting point | 251 °C (dec.)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Hydroquinonesulfonic acid potassium salt used for?
+
Hydroquinonesulfonic acid potassium salt is used as a building block in organic synthesis and in chemical research and development for creating more complex organic molecules and exploring novel chemical pathways.
What is the CAS number and formula for Hydroquinonesulfonic acid potassium salt?
+
The CAS number is 21799-87-1, and the linear formula is (HO)2C6H3SO3K.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Hydroquinonesulfonic acid potassium salt for laboratory and research purposes. Purity and specific grades are available upon request; it is not supplied as USP, BP, or EP grade unless explicitly stated.
How should Hydroquinonesulfonic acid potassium salt be handled?
+
Handle with appropriate personal protective equipment, including a dust mask (type N95 recommended), eyeshields, and gloves. Ensure adequate ventilation. It is classified as an irritant to skin, eyes, and respiratory tract (H315, H319, H335).
Is Hydroquinonesulfonic acid potassium salt a controlled substance?
+
Based on the provided data, Hydroquinonesulfonic acid potassium salt is not indicated as a controlled substance.
How is Hydroquinonesulfonic acid potassium salt shipped and exported?
+
Tech Serve Solutions exports fine chemicals globally. Packaging and shipping adhere to international regulations for chemical transport. Please contact us for specific shipping details to your region.
How can I request a quote or sample?
+
To request a quote or a sample of Hydroquinonesulfonic acid potassium salt, please use the contact form on our website or email our sales department directly.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis