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
生物源
synthetic (organic)
形狀
powder
顏色
light yellow
有用的pH值範圍
(20 °C, 10 g/L, 68 °F neutral)
黏度
50-200 cP, 4 % in H2O(25 °C)
mp
> 300.05 °C ((> 572.09 °F ))
溶解度
water: soluble
正離子痕跡
Na: 6.5-9.5%
儲存溫度
room temp
SMILES 字串
[Na].OC(C(O)C(O)C=O)C(O)CO.OC(=O)C
InChI
1S/C6H12O6.C2H4O2.Na/c7-1-3(9)5(11)6(12)4(10)2-8;1-2(3)4;/h1,3-6,8-12H,2H2;1H3,(H,3,4);
InChI 密鑰
DPXJVFZANSGRMM-UHFFFAOYSA-N
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相關類別
一般說明
應用
準備報告
在正常条件下，温度对本品溶液的影响是可逆的，因此轻微的温度变化对粘度没有持久影响。但是，长时间高温加热（高压灭菌）CMC溶液会使本品降解并永久性降低粘度。因此，CMC灭菌是非常困难的。与加热一样，γ-辐射也会降解CMC。与低粘度CMC相比，高压灭菌和辐照对高粘度CMC的不利影响更大。过滤CMC溶液往往会留下凝胶，因为该物质是纤维状的，所以溶液不能进行无菌过滤。
其他說明
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
從最近期的版本中選擇一個：
分析證明 (COA)
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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?
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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Is the carboxymethycelluose sterile?
1 answer-
This product is not sterile.
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I want to ask the degree of substitution of this CMC (C5678-500G). Thanks in advance.
1 answer-
As mention on the Product Specification Sheet, the acceptable range / quality specification for Degree of Substitution is 0.65 - 0.90 carboxymethyl groups per anhydroglucose unit.
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I want to know the molecualr weight of the Carboxymethylcellulose sodium salt low viscosity (C5678-500G)
1 answer-
The molecular weight is not determined for each lot, however, historical information indicates a molecular weight of approximately 90 kDa.
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