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
PHR1271
左多巴
Pharmaceutical Secondary Standard; Certified Reference Material
别名:
左旋多巴, 3-(3,4-二羟基苯基)-L-丙氨酸, 3-羟基-L-酪氨酸, L-DOPA, 左多巴
选择尺寸
About This Item
推荐产品
等级
certified reference material
pharmaceutical secondary standard
质量水平
Agency
traceable to BP 213
traceable to Ph. Eur. L0400000
traceable to USP 1361009
API类
levodopa
CofA
current certificate can be downloaded
技术
HPLC: suitable
gas chromatography (GC): suitable
mp
276-278 °C (lit.)
应用
pharmaceutical (small molecule)
包装形式
neat
储存温度
2-8°C
SMILES字符串
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 key
WTDRDQBEARUVNC-LURJTMIESA-N
基因信息
human ... DRD3(1814)
正在寻找类似产品? 访问 产品对比指南
应用
分析说明
其他说明
附注
相关产品
警示用语：
Warning
危险分类
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
11 - Combustible Solids
WGK
WGK 3
其他客户在看
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Helpful?
-
-
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/449/386/product-dating-information-mk.pdfHelpful?
-
-
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?
-
-
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?
-
Active Filters
我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
联系客户支持
