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
434965
2-Hydroxyethyl cellulose
average Mv ~90,000
Synonym(s):
Cellulose hydroxyethyl ether, Cellulose & cellulose derivatives
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| Size/SKU | Availability | Price |
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About This Item
form
powder
Quality Segment
autoignition temp.
725 °F
mol wt
average Mv ~90,000
extent of labeling
2.5 mol per mol cellulose (M.S.)
viscosity
100-180 cP(lit.)
density
0.6 g/mL at 25 °C (lit.)
SMILES string
O1C(C(C(C(C1CO)OC)O)OCCO)OC2C(OC(C(C2O)O)OC4C(OC(C(C4O)O)C)CO)COC3OC(C(C(C3O)O)OC)CO
InChI
1S/C29H52O21/c1-10-15(34)16(35)24(13(8-33)45-10)49-28-20(39)18(37)25(50-29-26(43-5-4-30)21(40)23(42-3)12(7-32)47-29)14(48-28)9-44-27-19(38)17(36)22(41-2)11(6-31)46-27/h10-40H,4-9H2,1-3H3
InChI key
CWSZBVAUYPTXTG-UHFFFAOYSA-N
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| description average Mv ~90,000 | description average Mw ~380,000 | description average Mv ~1,300,000 | description viscosity 90-160 cP, 5 % in H2O(25 °C) |
| Quality Level 100 | Quality Level 200 | Quality Level - | Quality Level 100 |
| form powder | form powder | form powder | form powder |
| density 0.6 g/mL at 25 °C (lit.) | density 0.6 g/mL at 25 °C (lit.) | density 0.6 g/mL at 25 °C (lit.) | density - |
| extent of labeling 2.5 mol per mol cellulose (M.S.) | extent of labeling 1.0 mol per mol cellulose (D.S.), 2.0 mol per mol cellulose (M.S.) | extent of labeling 2.5 mol per mol cellulose (M.S.) | extent of labeling - |
| viscosity 100-180 cP(lit.) | viscosity - | viscosity 3,400-5,000 cP, 1 wt. % in H2O(25 °C, Brookfield, spindle #4) (30 rpm)(lit.) | viscosity 90-160 cP, 5 % in H2O(25 °C) |
| mol wt average Mv ~90,000 | mol wt average Mw ~380,000 | mol wt average Mv ~1,300,000 | mol wt - |
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Storage Class
11 - Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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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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