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
240907
Trimethyl phosphite
≥99%, liquid
Synonym(s):
Methyl phosphite, P(OMe)3, Trimethoxyphosphine
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$48.80
$112.00
$48.80
About This Item
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Product Name
Trimethyl phosphite, ≥99%
InChI key
CYTQBVOFDCPGCX-UHFFFAOYSA-N
InChI
1S/C3H9O3P/c1-4-7(5-2)6-3/h1-3H3
SMILES string
COP(OC)OC
vapor density
4.3 (vs air)
vapor pressure
17 mmHg ( 20 °C)
assay
≥99%
form
liquid
reaction suitability
reagent type: ligand
reaction type: Heck Reaction, reagent type: ligand
reaction type: Suzuki-Miyaura Coupling
Quality Level
refractive index
n20/D 1.408 (lit.)
bp
111-112 °C (lit.)
mp
−78 °C (lit.)
density
1.052 g/mL at 25 °C (lit.)
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This Item | |||
|---|---|---|---|
| assay ≥99% | assay ≥98.0% (GC) | assay - | assay 97% |
| reaction suitability reagent type: ligand | reaction suitability - | reaction suitability - | reaction suitability - |
| form liquid | form liquid | form solution | form - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| bp 111-112 °C (lit.) | bp 112 °C/1013 hPa | bp - | bp 360 °C (lit.) |
| density 1.052 g/mL at 25 °C (lit.) | density 1.05 g/cm3 at 20 °C | density - | density 1.184 g/mL at 25 °C (lit.) |
General description
Application
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
supp_hazards
Storage Class
3 - Flammable liquids
wgk
WGK 1
flash_point_f
82.4 °F - closed cup
flash_point_c
28 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Phosphine Ligand Application Guide
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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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