Tetramethylammonium borohydride
Tetramethylammonium borohydride (CAS: 16883-45-7) is a chemical compound with the linear formula (CH3)4N(BH4) and a molecular weight of 88.99 g/mol. It functions as a reducing agent and reactant in various chemical synthesis applications. This compound is supplied by Tech Serve Solutions with an assay of 95%, suitable for research and development purposes. Its specific chemical properties make it valuable in advanced organic synthesis.
- IUPAC
- NSC 164901,TMAB
- Synonyms
- TMAB

Preparation of Iridium Complexes
Tetramethylammonium borohydride serves as a key reactant in the preparation of specific iridium tetrahydride complexes. These complexes often incorporate tridentate pincer-type bis(phosphino)silyl ligands, contributing to advancements in organometallic chemistry.
Reduction Reactions
As a reducing agent, Tetramethylammonium borohydride is employed in diverse reduction reactions within organic synthesis. Its borohydride functionality allows for the controlled reduction of various functional groups in complex molecules.
Chemical Synthesis Reagent
This compound is utilized as a synthetic reagent in chemical research and development. Its reactivity profile supports its application in creating new molecular structures and exploring novel synthetic pathways.
| Molecular weight | 88.99 |
|---|---|
| Linear formula | (CH3)4N(BH4) |
| Assay | 95% |
| Application | Reactant for:• Preparation of iridium tetrahydride complexes bearing a tridentate pincer-type bis(phosphino)silyl ligand1• Reduction reactions (reducing agent)2 |


Hazard statements
- H261In contact with water releases flammable gas
- H301Toxic if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P231Handle under inert gas
- P301IF SWALLOWED
- P305IF IN EYES
- P422
| 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 3134 4.3/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,T |
| Risk statements (R) | 15-25-36/38 |
| Safety statements (S) | 26-36/37/39-43-45 |
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 Tetramethylammonium borohydride used for?
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Tetramethylammonium borohydride is used as a reactant for the preparation of iridium tetrahydride complexes and in general reduction reactions within chemical synthesis.
What are the CAS number and formula for Tetramethylammonium borohydride?
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The CAS number for Tetramethylammonium borohydride is 16883-45-7, and its linear formula is (CH3)4N(BH4).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetramethylammonium borohydride with an assay of 95%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the main safety hazards associated with Tetramethylammonium borohydride?
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Tetramethylammonium borohydride is a Danger material (GHS02, GHS06) that is flammable (H261), toxic if swallowed (H301), and causes skin (H315) and serious eye irritation (H319). Handle with appropriate personal protective equipment and follow safety protocols.
How is Tetramethylammonium borohydride shipped and exported?
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Tetramethylammonium borohydride is classified under UN 3134, hazard class 4.3, packing group II. Tech Serve Solutions is experienced in exporting hazardous materials in compliance with international regulations.
How can I request a sample or quote for Tetramethylammonium borohydride?
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To request a sample or a quote for Tetramethylammonium borohydride, please contact our sales team via the website or directly by email, referencing the product name and CAS number.
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