Molekula
1,3,(6,7)-Naphthalenetrisulfonic acid, trisodium salt hydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1,3,(6 OR 7)-Naphthalenetrisulfonic acid, trisodium salt hydrate is a sulfonic acid derivative used in dye synthesis and as a chelating agent in industrial applications. It appears as a white to pale yellow crystalline powder. Available in 1 g, 5 g, and 25 g quantities. CAS: 123409-01-8. Molecular formula: C10H5(SO3Na)3 · xH2O. Molecular weight: 434.31 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies 1,3,(6 OR 7)-Naphthalenetrisulfonic acid, trisodium salt hydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £40.40 per pack ex VAT · £48.48 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to light-yellow powder |
| Water | ≤ 15.0% |
| Content | ≥ 80.0% |
| Free acid | ≤ 0.5% |
| Identification (IR) | Conforms to Reference |
| Salt | ≤ 2.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 20615136 |
| CAS Number | 123409-01-8 |
| Molecular Formula | C10H5(SO3Na)3 · xH2O |
| Molecular Weight | 434.31 |
| SMILES | C1=CC2=C(C=C(C=C2C=C1S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].O.[Na+].[Na+].[Na+] |
| REACH Code | Y113 |
| HTS Code | 29041032 |
| Tariff Code | 2904100090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 1,3,(6 OR 7)-Naphthalenetrisulfonic acid, trisodium salt hydrate used for?
It is primarily used as a dye intermediate and in the synthesis of specialty chemicals, particularly in the production of sulfonated dyes and pigments.
What is the chemical formula and molecular weight?
The formula is C10H5(SO3Na)3 · xH2O with a molecular weight of 434.31 g/mol.
How should this compound be stored?
Store at ambient temperature, protected from moisture and heat, in a tightly sealed container.
What grade is available?
Available in technical grade; specific purity details can be provided upon request.
Can Molekula supply this in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.