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
423238
(Hydroxypropyl)methyl cellulose
average Mn ~10,000
Synonym(s):
HPMC, Hypromellose
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About This Item
Recommended Products
form
powder
mol wt
average Mn ~10,000
extent of labeling
1.8-2.0 mol methoxy per mol cellulose (D.S.)
29 wt. % methoxy
0.2-0.3 mol propylene oxide per mol cellulose (M.S.)
7 wt. % propylene oxide
surface tension
43-55 dyn/cm, 25 °C, 0.05 wt. %
viscosity
6 cP(20 °C)(lit.)
transition temp
gel point 58-64 °C
SMILES string
O3[C@H]([C@@H]([C@H]([C@@H]([C@H]3COCC(O)C)OCC(O)C)OCC(O)C)OCC(O)C)O[C@@H]4[C@H](O[C@H]([C@@H]([C@H]4OCC(O)C)OCC(O)C)OCC(O)C)COCC(O)C.O1[C@H]([C@@H]([C@H]([C@@H]([C@H]1COC)OC)OC)OC)O[C@@H]2[C@H](O[C@H]([C@@H]([C@H]2OC)OC)OC)COC
InChI key
PUSNGFYSTWMJSK-GSZQVNRLSA-N
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Related Categories
1 of 4
This Item | 423203 | 423173 | H7509 |
|---|---|---|---|
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form powder | form powder | form powder | form powder |
| mol wt average Mn ~10,000 | mol wt average Mn ~86,000 | mol wt average Mn ~120,000 | mol wt ~86 kDa |
| extent of labeling 1.8-2.0 mol methoxy per mol cellulose (D.S.) | extent of labeling 1.8-2.0 mol methoxy per mol cellulose (D.S.), 29 wt. % methoxy, 0.2 mol propylene oxide per mol cellulose (M.S.), 7 wt. % propylene oxide | extent of labeling 1.1-1.6 mol methoxy per mol cellulose (D.S.), 21 wt. % methoxy, 0.1-0.3 mol propylene oxide per mol cellulose (M.S.), 5 wt. % propylene oxide | extent of labeling - |
| surface tension 43-55 dyn/cm, 25 °C, 0.05 wt. % | surface tension 43-55 dyn/cm, 25 °C, 0.05 wt. % | surface tension 43-55 dyn/cm, 25 °C, 0.05 wt. % | surface tension - |
| viscosity 6 cP(20 °C)(lit.) | viscosity 4,000 cP, 2 wt. % in H2O(20 °C, Ubbelohde)(lit.) | viscosity 100,000 cP, 2 wt. % in H2O(20 °C, Ubbelohde)(lit.) | viscosity 2,600-5,600 cP, 2 % in H2O(20 °C)(lit.) |
Application
Features and Benefits
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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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