Clean salt formation
Converts acid APIs into sodium salts in organic solvent, with the free acid by-product staying in the mother liquor.
SEH
Sodium 2-Ethylhexanoate (SEH) Supplier from China
Sodium 2-ethylhexanoate (SEH, sodium octoate) is a salt-forming agent for pharmaceutical sodium salts and a raw material for calcium, magnesium and other metal octoates used as driers and stabilizers. SUNCHEM supplies SEH with a batch COA on every shipment.
CAS 19766-89-3 · C₈H₁₅NaO₂ · Sodium octoate
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
SEH is the sodium salt of 2-ethylhexanoic acid. In pharmaceutical manufacturing it is dissolved in an organic solvent and used to exchange sodium onto an acid API, such as a β-lactam antibiotic; the sodium salt crystallizes while 2-ethylhexanoic acid stays in solution. It is also used to make calcium, magnesium and other metal octoates for paint driers and polymer stabilizers, and in lubricant and fuel additives.
Pharmaceutical users usually check assay, water, free acid or alkali and heavy metals; for industrial uses, assay and water are normally enough.
Base for metal octoates
A sodium source for making calcium, magnesium and other 2-ethylhexanoates used in driers and stabilizers.
Quoted to your limits
Send your in-house specification; we quote against it and send a batch COA for every lot.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product name | Sodium 2-Ethylhexanoate (SEH) |
| Synonyms | Sodium octoate; 2-ethylhexanoic acid sodium salt |
| CAS No. | 19766-89-3 |
| Molecular formula | C₈H₁₅NaO₂ |
| Molecular weight | 166.19 |
| Appearance | White to off-white powder |
Assay, water, free acid or alkali and heavy-metal limits depend on the producer grade and are stated on the TDS and batch COA; the limits for your order are confirmed in the quotation and contract.
Applications by Industry
Where SEH is used, and what to confirm before you switch supply.
Pharmaceutical salt formation
Salt-forming agent for the sodium salts of β-lactam antibiotics and other acid APIs, used in organic solvent.
Check before trial
- API and solvent system
- Water, free acid and heavy-metal limits
- Documents your QA team needs
Metal octoates, driers & stabilizers
Raw material for calcium, magnesium and other metal 2-ethylhexanoates used as paint driers and polymer stabilizers.
Check before trial
- Target metal salt
- Assay and water limits
- Monthly volume
Lubricant and fuel additives
Used in lubricant thickeners and in fuel and oil additive formulations.
Check before trial
- Formulation and dosage
- Purity you need
- Pack size
Selection & comparison
Choosing the right SEH grade
| Your requirement | What usually works |
|---|---|
| Antibiotic or API sodium salt | Specify water, free acid/alkali and heavy-metal limits; ask for the TDS first |
| Metal octoate production | Standard grade; agree assay and water |
| Replacing an existing supplier | Send your current TDS or COA; we quote against the parameters you approve |
Packaging & storage
Packaging
Pack size is confirmed with the quotation.
Storage
SEH takes up moisture: keep containers tightly closed in a dry place and follow the SDS.
From first email to approved supply
Name the use
API salt formation or industrial use: the limits and documents you need are very different.
Compare the numbers that matter
Assay, water, free acid or alkali and heavy metals. Ask for them on the same COA template as your incoming inspection.
Check documents early
Pharmaceutical users should confirm the documents their QA team needs before the sample is sent.
Trial, then lock the spec
Run a sample in your own process and keep the approved lot COA as the reference for contract limits.
Tell us your requirement. We match the grade.
Tell us how you use SEH, the quantity and the destination port. Add your current specification and we will quote against it.
| Information | Example |
|---|---|
| Application | API salt formation, metal octoates, additives |
| Required specification | Assay, water, free acid/alkali, heavy metals |
| Quantity | Trial order / monthly / annual volume |
| Destination | Country and port |
| Documents needed | COA, SDS, TDS |
Sodium 2-Ethylhexanoate (SEH) FAQ
What is sodium 2-ethylhexanoate used for?
Mainly as a salt-forming agent for pharmaceutical sodium salts such as β-lactam antibiotics, and as a raw material for metal octoates used as driers and stabilizers.
Why is SEH used for antibiotic sodium salts?
It dissolves in organic solvents, so it can exchange sodium onto an acid API in solution. The sodium salt crystallizes and the 2-ethylhexanoic acid by-product stays in the mother liquor.
Which parameters matter for pharmaceutical use?
Assay, water, free acid or alkali and heavy metals. Send your in-house limits and we will quote against them.
Can I get a sample and TDS?
Yes. Tell us your application and planned test, and we will send the TDS and SDS with the quotation and arrange a sample.
