1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate
1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate (CAS: 123409-01-8) is a sodium salt hydrate of a naphthalene sulfonic acid derivative. With the linear formula C10H5(SO3Na)3 · xH2O and an anhydrous molecular weight of 434.31 g/mol, this compound serves as a valuable building block in chemical synthesis. Its sulfonated structure makes it suitable for applications requiring water solubility and specific chemical reactivity, often utilised in organic synthesis and materials science research.
- Synonyms
- 7)-Naphthalenetrisulfonic acid trisodium salt hydrate123409-01-8C10H5(SO3Na)3 · xH2O

Organic Synthesis Intermediate
Utilised as a building block in the synthesis of more complex organic molecules. The sulfonic acid groups can participate in various chemical transformations, making it a versatile reagent.
Research and Development
Employed in laboratory settings for exploring new chemical pathways and developing novel compounds. Its specific structure lends itself to specialised research applications within organic chemistry.
Dye and Pigment Precursor
Naphthalene sulfonic acids are commonly used as intermediates in the production of dyes and pigments due to their chromophoric potential and ability to form stable salts.
| Molecular weight | 434.31 (anhydrous basis) |
|---|---|
| Linear formula | C10H5(SO3Na)3 · xH2O |

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
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate used for?
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This compound primarily serves as a building block in organic synthesis and is utilised in research and development for exploring new chemical pathways. It can also act as a precursor in the synthesis of dyes and pigments.
What are the CAS number and formula for 1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate?
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The CAS number is 123409-01-8. The linear formula is C10H5(SO3Na)3 · xH2O, with an anhydrous molecular weight of 434.31 g/mol.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and development purposes. While specific purity details are available on the Certificate of Analysis, we do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate be handled safely?
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This compound is a Warning substance that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Ensure adequate ventilation, wear appropriate protective gloves and eye protection, and avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes (P305 + P351 + P338).
Does Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate.
How can I request a sample or quote?
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To request a sample or obtain a quote for 1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate, please contact our sales team through the website or by phone, providing your specific requirements and delivery details.
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