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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
754242
Tetrahydroxydiboron
95%
Synonym(s):
BBA, Bis-Boric acid, Diboronic acid
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 g | Please contact Customer Service for Availability | $47.00 |
100 g | Please contact Customer Service for Availability | $1,040.00 |
About This Item
Quality Segment
assay
95%
form
solid
mp
>385 °C
SMILES string
OB(O)B(O)O
InChI
1S/B2H4O4/c3-1(4)2(5)6/h3-6H
InChI key
SKOWZLGOFVSKLB-UHFFFAOYSA-N
Application
Other reactions employing BBA as a reagent:
- Palladium-catalyzed boronation of vinyl cyclopropane, vinyl aziridine, and allyl acetate substrates.
- To facilitate catalytic transfer hydrogenations of simple alkenes and alkynes.
- Selective reducing agent for in situ N-oxide reduction of pyridine-N-oxides.
- As a substitute to bis(pinacolato) diboron for Miyaura borylation.
1 of 1
This Item | |||
|---|---|---|---|
| assay 95% | assay ≥95% | assay 95% | assay ≥95% |
| form solid | form - | form crystals | form powder |
| mp >385 °C | mp 256-260 °C (lit.) | mp 216-219 °C (lit.) | mp 262-265 °C (lit.) |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
signalword
Warning
Hazard Classifications
Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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