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
323136
Trimethylboroxine
99%
Synonym(s):
2,4,6-Trimethyl-1,3,5,2,4,6-trioxatriborinane, 2,4,6-Trimethylboroxine, Methaneboronic anhydride, Trimethyl-1,3,5,2,4,6-trioxatriborinane
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 g | Available to ship TODAYfromMILWAUKEE | $58.20 $43.65 |
5 g | Available to ship TODAYfromMILWAUKEE | $147.00 |
25 g | Available to ship TODAYfromMILWAUKEE | $376.00 |
250 g | Usually ships in 5 business days. (Orders outside of US, please allow an additional 1-2 weeks for delivery) | $2,860.00 $2,145.00 |
About This Item
$43.65
List Price$58.20Save 25%Available to ship TODAYDetails
Quality Segment
assay
99%
form
liquid
refractive index
n20/D 1.362 (lit.)
bp
78-80 °C (lit.)
mp
−38 °C (lit.)
density
0.898 g/mL at 25 °C (lit.)
SMILES string
Cb1ob(C)ob(C)o1
InChI
1S/C3H9B3O3/c1-4-7-5(2)9-6(3)8-4/h1-3H3
InChI key
GBBSAMQTQCPOBF-UHFFFAOYSA-N
Application
- As a derivatizing agent for gas chromatographic/mass spectrometric analysis.[1]
- In the preparation of methylaluminoxane (MAO) which is used in the polymerization of olefins.
- As an electrolyte additive to enhance the interface stability of electrode/electrolyte.
- In methylation of aryl halides by palladium-catalyzed Suzuki-Miyaura coupling reaction.
- In the preparation of CBS (Corey, Bakshi and Shibata) catalysts for asymmetric reductions of ketones to alcohols.[2]
1 of 1
This Item | |||
|---|---|---|---|
| assay 99% | assay - | assay ≥95% | assay >97% (HPLC) |
| mp −38 °C (lit.) | mp - | mp 99 °C | mp 114-114.8 °C (lit.) |
| bp 78-80 °C (lit.) | bp - | bp - | bp - |
| density 0.898 g/mL at 25 °C (lit.) | density 0.89962 g/mL | density - | density - |
| form liquid | form liquid | form powder or crystals | form powder |
| refractive index n20/D 1.362 (lit.) | refractive index n/D 1.3880 | refractive index - | refractive index - |
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signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2 - Skin Corr. 1B
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
15.8 °F - closed cup
flash_point_c
-9 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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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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