Other Chemicals
Dye Intermediates and Process Chemicals
Intermediates and process chemicals used in dye synthesis — DASDA, PNTOSA, 70% sulfuric acid and tributylamine (TBA).
A company that only makes finished goods stops when it cannot source the intermediate.
Ons synthesises dyes from the molecule up. Some of the intermediates and process chemicals used along the way we also supply separately.
DASDA and PNTOSA are dye intermediates; 70% sulfuric acid and tributylamine are process chemicals used in synthesis and purification. Tell us the item, quantity and intended use and we will come back with stock and lead time.
Content in preparation
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Dye intermediates
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Process chemicals for synthesis and purification
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Lead time confirmed per item and quantity
Dye synthesis
Process chemicals for synthesis
We synthesise dyes ourselves, so we know what the intermediate is for
Lead time confirmed against your item and quantity before we answer
Items we handle
| Item | Chemical name | CAS No. | Main use |
|---|---|---|---|
| DASDA | 4,4′-Diaminostilbene-2,2′-disulfonic acid | 81-11-8 | Dye intermediate |
| PNTOSA | p-Nitrotoluene-o-sulfonic acid | 121-03-9 | Dye intermediate |
| Sulfuric acid 70% | Sulfuric acid (70% aqueous) | 7664-93-9 | Synthesis and pH adjustment |
| TBA | Tributylamine | 102-82-9 | Base and acid scavenger |
- Can we get purity and pack sizes?
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Purity and packaging data are being compiled. Tell us the item, quantity and process it goes into, and we will send that item’s specification and lead time first.
- Can we ask about intermediates not listed here?
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Please ask. Because we synthesise dyes ourselves we know the supply lines for related intermediates, and we will tell you whether we handle it and what could substitute.
What are you looking to solve?
Send us the substrate and your constraints — we will come back with an assessment and samples.