There is no information available on the shelf life of Poloxamer 407 in solution. It is typically recommended to store solutions at room temperature.
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组成
oxyethylene, 71.5-74.9%
杂质
≤0.25% ethylene glycol and diethylene glycol
≤0.4% total ash
≤0.75% water
≤1 ppm ethylene oxide
≤2 ppm arsenic traces
≤20 ppm heavy metals
≤5 ppm dioxan
≤5 ppm propylene oxide
50-125 ppm butylhydroxytoluene
灼烧残渣
≤0.30%
颜色
APHA: ≤120, 50/50 in CH3OH
pH值（酸碱度）
5.0-7.5 (1:40 in H2O)
溶解性
10%, clear, colorless
SMILES字符串
O2C(C2)C.O1CC1
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
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应用
Poloxamer 407广泛用作增稠剂和凝胶粘合剂。
其他说明
Poloxamer 407是泊洛沙姆(poloxamer)的一种型号，来自广泛的Pluronic®嵌段共聚物系列。
法律信息
Pluronic is a registered trademark of BASF
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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I plan to dissolve the Poloxamer 407 powder (Sigma, 16758) in sterile distilled water at 4°C overnight and use it as a solution. Could you provide information on the optimal storage temperature and shelf life for the solution form?
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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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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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/449/386/product-dating-information-mk.pdfHelpful?
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How about the Mw of the product?
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The average molecular weight of this product is 10000 to 14600 g/mol.
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is it a pharma grade ?
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This product is not pharma grade.
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