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
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詳細
アプリケーション
特徴および利点
物理的形状
法的情報
保管分類コード
11 - Combustible Solids
WGK
WGK 3
引火点(°F)
Not applicable
引火点(℃)
Not applicable
個人用保護具 (PPE)
Eyeshields, Gloves, type N95 (US)
適用法令
試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。
Jan Code
P2191-100MG:
P2191-VAR:
P2191-1G:
P2191-BULK:
P2191-5G:
P2191-500MG:
最新バージョンのいずれかを選択してください：
試験成績書（COA）
この製品を見ている人はこちらもチェック
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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?
1 回答-
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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Please give me the detailed solubility profiling of this product with the solvent: Acetonitrile and Methanol
1 回答-
This product is not tested for solubility. However, other sources report that this material is soluble in acetone at 5 wt%. Other solvents listed are dichloromethane, tetrahydrofuran, ethyl acetate, and chloroform. No rate is provided. This information has not been validated.
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What is the glass transition temperature of Product P2191, Poly(D,L-lactide-co-glycolide)?
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The glass transition is 45-50°C; the melting point is amorphous.
役に立ちましたか？
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What is the viscosity of Product P2191, Poly(D,L-lactide-co-glycolide)?
1 回答-
The viscosity of this product is lot-specific and can be found in the Certificate of Analysis.
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What is the Department of Transportation shipping information for this product?
1 回答-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Product P2191, Poly(D,L-lactide-co-glycolide), is a compound that is useful as a time-release agent in delivery systems such as herbicides, pesticides, and drugs. What is the rate of degradation?
1 回答-
The higher the lactic acid to glycolic acid ratio, the slower is the degradation rate of the polymer. Molecular weight of the polymer is a contributing factor to the degradation; the lower the molecular weight, the faster the degradation rate of the polymer.
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