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
511447
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
97%, powder
Synonym(s):
BAPOs, Bisacylphosphine oxides
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About This Item
Quality Segment
assay
97%
form
powder, powder, crystals or chunks
mp
131-135 °C (lit.)
solubility
acetone, acetonitrile, toluene, and hexanediol diacrylate: soluble
SMILES string
Cc1cc(C)c(c(C)c1)C(=O)P(=O)(C(=O)c2c(C)cc(C)cc2C)c3ccccc3
InChI
1S/C26H27O3P/c1-16-12-18(3)23(19(4)13-16)25(27)30(29,22-10-8-7-9-11-22)26(28)24-20(5)14-17(2)15-21(24)6/h7-15H,1-6H3
InChI key
GUCYFKSBFREPBC-UHFFFAOYSA-N
General description
Application
- Radical polymerization of dental resins. BAPO enhances the polymerization rate and conversion compared to other initiators.
- Preparation of divinylbenzene modified polymer-based ceramic materials for high temperature sensor applications.
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This Item | |||
|---|---|---|---|
| assay 97% | assay 97% | assay - | assay 99% |
| solubility acetone, acetonitrile, toluene, and hexanediol diacrylate: soluble | solubility - | solubility - | solubility - |
| mp 131-135 °C (lit.) | mp 88-92 °C (lit.) | mp 64-69 °C (lit.) | mp 152-155 °C (lit.) |
| form powder, powder, crystals or chunks | form powder | form - | form - |
| Quality Level 300 | Quality Level 200 | Quality Level - | Quality Level 100 |
signalword
Warning
hcodes
Hazard Classifications
Aquatic Chronic 4 - Skin Sens. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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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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Can you please provide the value of absolute density of this product? Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide Thanks
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The physical form of this material may range from powder to crystals. The density of this product has not been determined.
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