1,5-Naphthalenedisulfonic acid tetrahydrate
1,5-Naphthalenedisulfonic acid tetrahydrate (CAS: 211366-30-2) is a disulfonic acid of naphthalene, provided as a tetrahydrate with the molecular formula C 10 H 6 (SO 3 H) 2 ·4H 2 O and a molecular weight of 360.36 g/mol. This compound serves as a valuable building block in organic synthesis. Its properties make it suitable for various chemical processes requiring a naphthalene-based sulfonic acid moiety.
- IUPAC
- Armstrong’s acid
- Synonyms
- Armstrong’s acid
Organic Synthesis Intermediate
Utilised as a key building block in the synthesis of more complex organic molecules. Its disulfonic acid structure offers reactive sites for further chemical modifications.
Dye and Pigment Precursor
Can serve as an intermediate in the production of certain dyes and pigments, where the naphthalene core and sulfonic acid groups contribute to chromophoric properties.
Chemical Research
Employed in research laboratories for the exploration of new synthetic routes and the development of novel compounds with potential applications in materials science or pharmaceuticals.
| Molecular weight | 360.36 |
|---|---|
| Linear formula | C10H6(SO3H)2·4H2O |
| Assay | 97% |
Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2585 8/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 1,5-Naphthalenedisulfonic acid tetrahydrate used for?
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1,5-Naphthalenedisulfonic acid tetrahydrate is used as a building block in organic synthesis, and potentially as a precursor for dyes and pigments, as well as in chemical research.
What are the CAS number and formula for 1,5-Naphthalenedisulfonic acid tetrahydrate?
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The CAS number is 211366-30-2, and the linear formula is C10H6(SO3H)2·4H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,5-Naphthalenedisulfonic acid tetrahydrate with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety hazards associated with this compound?
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This compound is classified as Danger with Hazard Statement H314, indicating it causes severe skin burns and eye damage. Appropriate personal protective equipment, including eye protection, gloves, and respiratory protection, is essential during handling.
How is 1,5-Naphthalenedisulfonic acid tetrahydrate packed and exported?
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The product is transported under UN 2585, Hazard Class 8, Packing Group III. Export documentation and packaging adhere to international regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales team via the website or your dedicated account manager, providing the product name and CAS number (211366-30-2).
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