B-Methoxy-9-BBN solution
9-Methoxy-9-borabicyclo[3.3.1]nonane solution (CAS 38050-71-4) is an organoboron compound with the formula C9H17BO and a molecular weight of 152.04 g/mol. Supplied as a 1.0 M solution in hexanes, it is a versatile reagent primarily utilised in organic synthesis. Key applications include its role as a pro-nucleophile and co-catalyst in indium-catalyzed reactions and as a reactant in stereoselective Suzuki cross-coupling reactions.
- IUPAC
- 9-Methoxy-9-borabicyclo[3.3.1]nonane

Indium-Catalyzed Allylations
This solution serves as a pro-nucleophile and co-catalyst for indium-catalyzed allylation reactions, particularly effective with methyl ethers and carbohydrate derivatives.
Catalysis for Allenes Synthesis
It functions as a catalyst in the preparation of linear allenes from other allene precursors, facilitating specific synthetic transformations.
Suzuki-Miyaura Cross-Coupling
The compound is a valuable reactant in stereoconvergent and B-alkyl Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds.
Synthesis of Borabicyclononanyl Complexes
It is employed in the preparation of borabicyclononanyl amino acid complexes, which have shown potential in the selective treatment of malignant melanoma.
Asymmetric Allenyl Borane Synthesis
This reagent is used in the asymmetric synthesis of isomerically pure allenyl boranes, achieved through insertion and borotropic rearrangement mechanisms.
| Molecular weight | 152.04 |
|---|---|
| Empirical formula | C9H17BO |
| Density | 0.716 g/mL at 25 °C |
| Concentration | 1.0 M in hexanes |
| Application | • Pro-nucleophile and co-catalyst for indium-catalyzed allylations of methyl ethers and carbohydrate derivatives1• Catalyst for preparation of linear allenes from other allenes2Reactant for:• Stereoconvergent Suzuki cross-coupling reactions3• B-alkyl Suzuki-Miyaura cross-coupling reactions4• Preparation of borabicyclononanyl amino acid complexes for selective treatment of malignant melanoma5• Asymmetric synthesis of isomerically pure allenyl boranes through insertion and borotropic rearrangement6 |




Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H336May cause drowsiness or dizziness
- H361F
- H373May cause damage to organs through prolonged exposure
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P281Use personal protective equipment as required
- P301IF SWALLOWED
- P331Do NOT induce vomiting
| Flash point | -26 °C / -14.8 °F |
|---|---|
| Transport (UN / ADR) | UN 1993BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn,N |
| Risk statements (R) | 11-38-48/20-51/53-62-65-67 |
| Safety statements (S) | 36/37-61-62 |
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 9-Methoxy-9-borabicyclo[3.3.1]nonane solution used for?
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This solution is used as a pro-nucleophile and co-catalyst in indium-catalyzed allylations and as a reactant in Suzuki cross-coupling reactions, among other synthetic applications.
What is the CAS number and formula?
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The CAS number is 38050-71-4 and the molecular formula is C9H17BO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product as a 1.0 M solution in hexanes. We do not represent it as USP, BP, EP, or other pharmacopoeia grades.
How should 9-Methoxy-9-borabicyclo[3.3.1]nonane solution be handled?
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This product is highly flammable and can cause skin irritation, drowsiness or dizziness, and may damage fertility or the unborn child. It is also toxic to aquatic life with long lasting effects. Handle with appropriate personal protective equipment in a well-ventilated area, away from ignition sources.
How is this chemical shipped?
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This chemical is shipped according to international transport regulations for hazardous materials, designated as UN 1993, Class 3, Packing Group II.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales team through the website or by phone.
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