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
93829
L-酪氨酸
≥99.0% (NT), suitable for ligand binding assays, BioUltra
别名:
(S)-2-氨基-3-(4-羟苯基)丙酸, 3-(4-羟苯基)-L-丙氨酸
选择尺寸
About This Item
推荐产品
产品名称
L-酪氨酸, BioUltra, ≥99.0% (NT)
产品线
BioUltra
方案
≥99.0% (NT)
表单
powder or crystals
旋光性
[α]20/D −11.5±1.0°, c = 4% in 1 M HCl
技术
ligand binding assay: suitable
杂质
insoluble matter, passes filter test
≤0.5% foreign amino acids
灼烧残渣
≤0.1%
缺失
≤0.2% loss on drying, 20 °C (HV)
颜色
white
mp
>300 °C (dec.) (lit.)
溶解性
1 M HCl: 25 mg/mL, clear, colorless (hot)
痕量阴离子
chloride (Cl-): ≤400 mg/kg
sulfate (SO42-): ≤300 mg/kg
痕量阳离子
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤200 mg/kg
Na: ≤200 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg
吸附
cut-off at 310 nm in 1 M HCl at 0.5 M
SMILES字符串
N[C@@H](Cc1ccc(O)cc1)C(O)=O
InChI
1S/C9H11NO3/c10-8(9(12)13)5-6-1-3-7(11)4-2-6/h1-4,8,11H,5,10H2,(H,12,13)/t8-/m0/s1
InChI key
OUYCCCASQSFEME-QMMMGPOBSA-N
正在寻找类似产品? 访问 产品对比指南
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
dust mask type N95 (US), Eyeshields, Gloves
其他客户在看
商品
Learn more about the amino acid L-Tyrosine and explore how it is used in cell culture media like MEM, DMEM, and RPMI. We offer a comprehensive portfolio of amino acid cell culture supplements and reagents.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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?
-
-
Hi, is the recommended retest date based on established stability?
1 answer-
Product retest dating is based upon review of the product history or that of a comparable product. Please see the link below to review the Product Dating Statement:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/178/822/product-dating-information-statement.pdf
The assigned quality level (MQ) for this product is 200. Product of this quality level do not qualify for shelf life defined by stability studies. Please see the link below for additional information regarding assigned quality levels:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/346/647/m-clarity-quality-attributes-fl12541en-ms.pdfHelpful?
-
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.
联系技术服务部门