Phase-transfer catalysis
Moves anions into the organic phase so two-phase reactions run faster and milder.
TBAB
Tetrabutylammonium Bromide (TBAB) Supplier from China
Tetrabutylammonium bromide (TBAB) is a quaternary ammonium salt used as a phase-transfer catalyst, as an ion-pair reagent and as an intermediate in pharmaceutical and organic synthesis. SUNCHEM supplies TBAB with a batch COA on every shipment.
CAS 1643-19-2 · C₁₆H₃₆BrN · Tetrabutylammonium bromide
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
TBAB carries anions from a water phase into an organic phase, so it speeds up alkylations, substitutions, oxidations and other two-phase reactions under mild conditions — the classic phase-transfer catalyst in pharmaceutical and agrochemical synthesis. It is also used as an ion-pair reagent in chromatography, as an electrolyte, and as an intermediate for other tetrabutylammonium salts.
The product listed on this page as “TABA” with CAS 1643-19-2 and formula C₁₆H₃₆BrN is tetrabutylammonium bromide (TBAB).
Ion-pair and electrolyte use
Used as an ion-pair reagent in chromatography and as a supporting electrolyte.
Specified on your terms
We quote against your assay, water and appearance and send the batch COA for each lot.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product name | Tetrabutylammonium Bromide |
| Synonyms | TBAB; tetra-n-butylammonium bromide |
| CAS No. | 1643-19-2 |
| EC No. | 216-699-2 |
| Molecular formula | C₁₆H₃₆BrN |
| Molecular weight | 322.37 |
| Appearance | White crystals or crystalline powder |
Assay, water, free amine and color 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 TBAB is used, and what to confirm before you switch supply.
Phase-transfer catalyst
Catalyzes alkylation, etherification, esterification and substitution reactions between water and organic phases.
Check before trial
- Reaction type and loading
- Assay and water
- Monthly volume
Pharmaceutical and organic intermediates
An intermediate and reagent in pharmaceutical and fine-chemical synthesis.
Check before trial
- Synthesis step
- Impurity limits
- Documents your QA needs
Ion-pair reagent and electrolyte
An ion-pair reagent for HPLC and a supporting electrolyte in electrochemistry.
Check before trial
- Purity grade
- Pack size
- Certificates
Selection & comparison
Choosing the right TBAB grade
| Your requirement | What usually works |
|---|---|
| Phase-transfer catalysis in production | Industrial grade; agree assay and water |
| Pharmaceutical synthesis | Specify impurity limits your QA approves |
| HPLC ion-pair or electrochemistry | High-purity grade in small packs |
| Replacing an existing supplier | Send your current TDS or COA; we quote against the parameters you approve |
Packaging & storage
Packaging
Tell us the drum or bag size you need; we confirm the packaging with the quotation.
Storage
Keep containers tightly closed in a dry place; TBAB is hygroscopic.
From first email to approved supply
Name the end use
Catalysis, synthesis or analysis: purity and pack size follow from it.
Compare the numbers that matter
Assay, water, free amine and color.
Keep it dry
TBAB absorbs moisture; reseal opened containers.
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 the reaction or use, the quantity and the destination port. Add your current specification and we will quote against it.
| Information | Example |
|---|---|
| Application | Phase-transfer catalyst, pharma intermediate, ion-pair reagent |
| Required specification | Assay, water |
| Packaging | Drum or bag size |
| Quantity | Sample / trial order / annual volume |
| Destination | Country and port |
| Documents needed | COA, SDS, TDS, REACH statement |
Related products
Tetrabutylammonium Bromide (TBAB) FAQ
What is TBAB used for?
As a phase-transfer catalyst, an ion-pair reagent, an electrolyte and an intermediate in pharmaceutical and organic synthesis.
Is “TABA” the same product?
Yes. CAS 1643-19-2 with formula C₁₆H₃₆BrN is tetrabutylammonium bromide, usually abbreviated TBAB.
Which parameters should I compare between offers?
Assay, water, free amine and color.
How should TBAB be stored?
In tightly closed containers in a dry place; it is hygroscopic.
