Maintenance Notice (6:30 AM - 9:00 AM November 9, 2025): This website is scheduled to be unavailable due to maintenance. We appreciate your patience and understanding.
Maximum quantity allowed is 999
Please select the quantity
CAS RN: 201733-56-4 | Product Number: B2254
Bis(neopentyl Glycolato)diboron
×
![]()
×
Purity: >98.0%(GC)
Synonyms:
- 5,5,5',5'-Tetramethyl-2,2'-bi-1,3,2-dioxaborinane
Product Documents:
| Size | Unit Price | Shanghai | Tianjin | Japan* |
|---|---|---|---|---|
| 1G |
¥140.00
|
8 | 1 | 19 |
| 5G |
¥190.00
|
2 | 1 | 10 |
| 25G |
¥690.00
|
4 | Contact Us | 3 |
* For order or inquiry, please contact
Our Authorized Distributors.
*TCI frequently reviews storage conditions to optimize them. Please note that the latest information on the storage temperature for the products is described on our website.
* To send your quote request for bulk quantities, please click on the "Request Bulk Quote" button. Please note that we cannot offer bulk quantities for some products.
| Product Number | B2254 |
Purity / Analysis Method 
|
>98.0%(GC) |
| Molecular Formula / Molecular Weight | C__1__0H__2__0B__2O__4 = 225.89 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature
|
Refrigerated (0-10°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Hygroscopic,Heat Sensitive |
| Packaging and Container
|
1G-Glass Bottle with Plastic Insert (View image) |
| CAS RN | 201733-56-4 |
| Reaxys Registry Number | 8839038 |
| PubChem Substance ID | 87565104 |
| MDL Number | MFCD02093062 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(GC) | min. 98.0 % |
| Melting point | 186.0 to 193.0 °C |
| Solubility in Methanol | almost transparency |
| NMR | confirm to structure |
Properties (reference)
| Melting Point | 192 °C |
| Solubility in water | Insoluble |
| Solubility (soluble in) | Methanol |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| Precautionary Statements | P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. |
Related Laws:
Transport Information:
| Customs Control Conditions (Q) |
Application
Rhodium(I)-Catalyzed Aryl Nitrile Borylation through the Cleavage of Carbon-Cyano Bonds
Typical procedure (R=Ph, entry 1): A dried screw-capped 5 mL vial is charged with 2-naphthonitrile (76.6 mg), bis(neopentyl glycolato)diboron (225.9 mg), [RhCl(cod)]2 (12.3 mg), Xantphos (57.9 mg), DABCO (56.1 mg) and toluene (0.5 mL) under nitrogen. The vial is heated with an oil bath at 100 °C for 15 h followed by cooling. The product is purified by flash chromatography (eluent: hexane/EtOAc = 10/1) to give 5,5-dimethyl-2-(2-naphthyl)-1,3,2-dioxaborinane (103 mg, 86%) as a white solid.
References
PubMed Literature
Product Articles
[Research Articles] Rhodium(I)-Catalyzed Aryl Nitrile Borylation through the Cleavage of Carbon-Cyano BondsProduct Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.
The requested SDS is not available.
Please Contact Us for more information.
Specifications
C of A & Other Certificates
Please enter Lot Number
Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.
Sample C of A
This is a sample C of A and may not represent a recently manufactured lot of the product.
A sample C of A for this product is not available at this time.
Analytical Charts
Please enter Lot Number
Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.
The requested analytical chart is not available. Sorry for the inconvenience.