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
C9481
Carboxymethylcellulose sodium
meets USP testing specifications, Medium viscosity
Sinonimo/i:
Carboxymethylcellulose sodium salt, Sodium carboxymethylcellulose
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About This Item
Prodotti consigliati
agenzia
USP/NF
meets USP testing specifications
Livello qualitativo
Saggio
6.5-9.5% anhydrous basis (Sodium)
Stato
powder
Colore
light yellow
pH
(10 g/L68 °F neutral)
Viscosità
400-800 cP, 2 % in H2O(25 °C)(lit.)
Punto di fusione
> 300.05 °C ((> 572.09 °F ))
Solubilità
water: soluble
Stringa SMILE
[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);
DPXJVFZANSGRMM-UHFFFAOYSA-N
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Descrizione generale
Applicazioni
Altre note
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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Certificati d'analisi (COA)
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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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I need this product information about Molecular weight. 분자량 범위 정보 필요
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The molecular weight of this product is 250 kDa.
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What is the expiration/shelf life/retest date of this product? The Certificate of Analysis does not list any information about it for individual lots. Thank you!
1 answer-
This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
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I have a question regarding the degree of substitution of product C9481. As you know, the degree of substitution of CMC is an important characteristic. Have a wonderful day.
1 answer-
The degree of substitution of this item is 0.7 (approximately 7 carboxymethyl groups per 10 anhydroglucose units).
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