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
表单
powder
分子量
~22 kDa
颜色
beige
粘度
40-60 cP, 2 % in H2O(20 °C)(lit.)
溶解性
water: 10 mg/mL, clear to slightly hazy
储存温度
room temp
SMILES字符串
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
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应用
特点和优势
质量
制备说明
在热水中分散：
1. 将约1/3所需量的水加热至最低90 oC。
2. 将粉末加入到热水中，并伴有搅拌或晃动。
3. 晃动混合液直至颗粒完全湿润并均匀分散。
4. 将剩余的水（冷水）加入以降低分散液的温度。随着温度的下降，会达到使其变成水溶性的温度。此次将会开始水化和溶解，提高溶液的粘度。
5. 在达到溶解度的合适温度后持续晃动至少30分钟。此时溶液便可进行使用。
干拌：
1. 将粉末与其他干燥成分混合。干粉与羟丙基甲基纤维素的建议比例在7:1到3:1之间。
2. 将干燥的成分进行充分的搅拌。
3. 将干燥的混合物加入到水中并晃动。
4. 持续晃动直到完全水化并且溶液达到了稳定的顺滑状况。此时溶液便可进行至下一步或使用。
在非溶剂介质中分散
1. 羟丙基甲基纤维素可分散在非溶剂介质中，如植物油、聚乙二醇、甘油、玉米糖浆和浓盐溶液。推荐使用5-8份的非溶剂与1份羟丙基甲基纤维素的比例以获得液体浆料。
2. 晃动混合液直至颗粒均匀分散。
3. 可将分散物加入至冷水中，或将冷水加入到分散物中。
4. 持续晃动直到粉末完全水化并且溶液达到了稳定的顺滑状况。此时可将更多的成分加入到配方中。
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
历史批次信息供参考:
分析证书(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?
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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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