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
PHR1271
レボドパ
Pharmaceutical Secondary Standard; Certified Reference Material
別名:
3,4-ジヒドロキシ-L-フェニルアラニン, 3-(3,4-ジヒドロキシフェニル)-L-アラニン, L-3-ヒドロキシチロシン, L-DOPA, レボドパ
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About This Item
おすすめの製品
グレード
certified reference material
pharmaceutical secondary standard
品質水準
認証
traceable to BP 213
traceable to Ph. Eur. L0400000
traceable to USP 1361009
APIファミリー
levodopa
CofA
current certificate can be downloaded
テクニック
HPLC: suitable
gas chromatography (GC): suitable
mp
276-278 °C (lit.)
アプリケーション
pharmaceutical (small molecule)
フォーマット
neat
保管温度
2-8°C
SMILES記法
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 Key
WTDRDQBEARUVNC-LURJTMIESA-N
遺伝子情報
human ... DRD3(1814)
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関連するカテゴリー
詳細
アプリケーション
アナリシスノート
その他情報
脚注
関連製品
シグナルワード
Warning
危険有害性情報
危険有害性の分類
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
ターゲットの組織
Respiratory system
保管分類コード
11 - Combustible Solids
WGK
WGK 3
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
PHR1271-500MG:
PHR1271-500MG-PW:
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How can I determine the shelf life / expiration / retest date of this product?
1 回答-
役に立ちましたか？
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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
役に立ちましたか？
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For how long should you store L-DOPA after elution?
1 回答-
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.
役に立ちましたか？
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What is the best solvent that dissolves this product? To prepare the stock solution
1 回答-
It is soluble in water (3 mg/ml), DMSO (<1 mg/ml at 25° C), and 0.5M HCl (50 mg/ml).
役に立ちましたか？
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アクティブなフィルタ
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