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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
473294
Bis(pinacolato)diboron
99%
Synonym(s):
4,4,4′,4′,5,5,5′,5′-Octamethyl-2,2′-bi-1,3,2-dioxaborolane
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 g | Available to ship TODAYfromMILWAUKEE | $76.30 |
5 g | Available to ship TODAYfromMILWAUKEE | $155.00 |
25 g | Available to ship TODAYfromMILWAUKEE | $275.00 |
100 g | Available to ship TODAYfromMILWAUKEE | $715.00 |
500 g | Available to ship TODAYfromMILWAUKEE | $1,410.00 |
About This Item
$76.30
Available to ship TODAYDetails
assay
99%
form
powder (or crystals)
mp
137-140 °C (lit.)
SMILES string
CC1(C)OB(OC1(C)C)B2OC(C)(C)C(C)(C)O2
InChI
1S/C12H24B2O4/c1-9(2)10(3,4)16-13(15-9)14-17-11(5,6)12(7,8)18-14/h1-8H3
InChI key
IPWKHHSGDUIRAH-UHFFFAOYSA-N
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| form powder (or crystals) | form solid | form - | form - |
| assay 99% | assay - | assay 96% | assay 97% |
| mp 137-140 °C (lit.) | mp 48 °C | mp 180.5-184.5 °C (lit.) | mp 189-196 °C (lit.) |
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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?
1 answer-
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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Active Filters
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- Charitable Donation
Contaminated
11B NMR showed significant impurities that likely inhibited the desired reactivity (Hartwig borylation), other vendors sell lots that do not have these impurities and perform more consistently
- A donation to charity was made for this review
- Yes
Recommends this productNoHelpful?
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Thank you for your review. We are sorry to hear that your experience did not match your product expectations. This product has been tested to meet our 99% Purity (GC) spec. If you are experiencing problems with impurities, call or email us with your Proudct Order and Lot Number for additional technical support. Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.
