Molecular weight is not tested for this polymer. The product is characterized by its viscosity (15 mPa·s, 2% in water at 25°C) and substitution level rather than a defined Mw.
Fortfahren mit
09963
(Hydroxypropyl)methylcellulose
Synonym(e):
2-Hydroxypropyl methyl cellulose ether
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Technischer Dienst
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Unterstützung erhaltenform
powder
Quality Segment
composition
hydroxylpropoxyl content, ~9%
color
faint beige
viscosity
~15 mPa.s, 2 % in H2O(25 °C)
solubility
water: 100 mg/10 mL, clear, colorless
storage temp.
room temp
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
1S/C36H70O19.C20H38O11/c1-19(37)9-45-17-27-29(47-11-21(3)39)31(48-12-22(4)40)34(51-15-25(7)43)36(54-27)55-30-28(18-46-10-20(2)38)53-35(52-16-26(8)44)33(50-14-24(6)42)32(30)49-13-23(5)41;1-21-9-11-13(23-3)15(24-4)18(27-7)20(30-11)31-14-12(10-22-2)29-19(28-
InChI key
PUSNGFYSTWMJSK-GSZQVNRLSA-N
Application
Verdicker für wässrige und nicht-wässrige Systeme, klare Filme mit Fettbeständigkeit, Bindemittel, Schmiermittel, sterischer Stabilisator und Wasser Retentionsmittel.
(Hydroxypropyl)methyl cellulose (HPMC), an inert viscoelastic polymer is used as an emulsifier, thickening and suspending agent similar to animal gelatin. HPMC is used in the development of controlled-delivery medicament.
Features and Benefits
Löst sich in Wasser, reversible Gelbildung beim Erhitzen, nicht-ionisch, bildet keine Komplexe mit ionischen Spezies, oberflächenaktiv und Enzym resistent. Die Lösungen sind pseudoplastisch.
Other Notes
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
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Dieser Artikel | |||
|---|---|---|---|
| description - | description average Mn ~120,000 | description viscosity 80-120 cP, 2 % in H2O(20 °C)(lit.) | description average Mn ~10,000 |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| solubility water: 100 mg/10 mL, clear, colorless | solubility - | solubility - | solubility - |
| form powder | form powder | form powder | form powder |
| storage temp. room temp | storage temp. - | storage temp. - | storage temp. - |
| color faint beige | color - | color beige | color - |
| composition hydroxylpropoxyl content, ~9% | composition - | composition - | composition - |
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Lagerklasse
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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What is the molecular weight (Mw) of Sigma-Aldrich product 09963 (hydroxypropyl methylcellulose, HPMC), and is this value specified or only estimated based on viscosity grade?
1 answer-
Helpful?
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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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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