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
推薦產品
等級
certified reference material
pharmaceutical secondary standard
品質等級
agency
traceable to BP 213
traceable to Ph. Eur. L0400000
traceable to USP 1361009
API 家族
levodopa
CofA
current certificate can be downloaded
技術
HPLC: suitable
gas chromatography (GC): suitable
mp
276-278 °C (lit.)
應用
pharmaceutical (small molecule)
形式
neat
儲存溫度
2-8°C
SMILES 字串
N[C@@H](Cc1ccc(O)c(O)c1)C(O)=O
InChI
1S/C9H11NO4/c10-6(9(13)14)3-5-1-2-7(11)8(12)4-5/h1-2,4,6,11-12H,3,10H2,(H,13,14)/t6-/m0/s1
InChI 密鑰
WTDRDQBEARUVNC-LURJTMIESA-N
基因資訊
human ... DRD3(1814)
尋找類似的產品？ 前往 產品比較指南
應用
分析報告
其他說明
腳註
相關產品
訊號詞
Warning
危險分類
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
客戶也查看了
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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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
Helpful?
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For how long should you store L-DOPA after elution?
1 answer-
As a neat material stored at a refrigerated temperature and protected from light, levodopa is stable for at least 3 years. Levodopa is not stable in solution for long durations. According to peer-reviewed literature, levodopa degrades significantly in solution at ambient temperature over the course of 48 hours. The addition of a reducing agent such as ascorbate can prolong solution stability up to 72 hours. Refrigeration or freezing of the solution can significantly reduce levodopa degradation for up to 7 days. In general, it is recommended to prepare a solution of levodopa the day it is needed.
Helpful?
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What is the best solvent that dissolves this product? To prepare the stock solution
1 answer-
It is soluble in water (3 mg/ml), DMSO (<1 mg/ml at 25° C), and 0.5M HCl (50 mg/ml).
Helpful?
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