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.pdf
推薦產品
形狀
powder
品質等級
分子量
Mr ~40,000
損耗
≤10% loss on drying
顏色
white to off-white
有用的pH值範圍
6.0-8 (10 g/L)
mp
(Decomposes on heating.)
溶解度
water: soluble
儲存溫度
room temp
尋找類似的產品？ 前往 產品比較指南
相關類別
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 2
閃點（°F）
Not applicable
閃點（°C）
Not applicable
從最近期的版本中選擇一個：
分析證明 (COA)
客戶也查看了
文章
Centrifugation enables the separation of particles by sedimentation. Learn how to separate particles using a centrifuge and how to use Stokes' law to calculate the velocity of sedimentation.
離心法可藉由沉降將微粒分離。學習如何使用離心機分離微粒，以及如何使用斯托克斯定律計算沉降速度。
Explore FITC-labelled polysaccharides and their properties, including impact of molecular weight on molecule dimensions.
探索 FITC 標示的多醣體及其特性，包括分子量對分子尺寸的影響。
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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
Helpful?
-
-
Does DDS (Dextran Sodium Sulfate) come in a USP grade for a animal studies?
1 answer-
Unfortunately, there is no pharmaceutical grade Dextran Sodium Sulfate available at this time. This product is not tested for use in animal models. It would be up to the researcher to determine suitability.
Helpful?
-
-
Hello! I want to know if you can autoclave water with 4% of dextran sulfate sodium (DSS) without decomposing the DSS.
1 answer-
The solubility of dextran sulfates is tested at 100 mg/mL in water. Clear solutions are obtained. Buffered aqueous dextran sulfate solutions can be sterilized by autoclaving at 110-115 °C for 30 to 45 minutes. Dextran can be hydrolyzed by strong acids at high temperatures. Dextran sulfate has a higher affinity for calcium ions than for sodium ions. The calcium salt of dextran sulfate is insoluble. The free acid (hydrogen) form of dextran sulfate is extremely acidic and autohydrolyzes rapidly in solution and as a powder.
More information can be found here: https://www.sigmaaldrich.com/technical-documents/protocol/protein-biology/protein-pulldown/dextran-sulfate
Helpful?
-
Active Filters
我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.
聯絡技術服務
