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Merck

93829

Sigma-Aldrich

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

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25 G
$141.00
100 G
$409.00

$141.00


国内现货,预计发货时间2025年4月07日详情


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25 G
$141.00
100 G
$409.00

About This Item

线性分子式:
4-(HO)C6H4CH2CH(NH2)CO2H
CAS号:
分子量:
181.19
Beilstein:
392441
EC 号:
MDL编号:
UNSPSC代码:
12352209
eCl@ss:
32160406
PubChem化学物质编号:
NACRES:
NA.26

$141.00


国内现货,预计发货时间2025年4月07日详情


获取大包装报价

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

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应用

L-酪氨酸用于酪氨酸羟化酶(TH)酶活性测定。[1]它还用作霍乱弧菌菌株生长培养基中酪氨酸酶的底物,以刺激黑色素形成。[2]它可以用作(-)-MY 336a 合成的前体。MY 336a,β-肾上腺素能受体拮抗剂,最早是从 加蓬链霉菌 KY2234(ATCC 15282)的培养液中分离的。[3]它可用于合成 3-溴-L-酪氨酸和 3,5-二溴-L-酪氨酸。[4]

其他说明

多巴胺和其他儿茶酚胺的氨基酸前体
各种微生物的生长要求[5]

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


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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V E Coyne et al.
Applied and environmental microbiology, 58(9), 2861-2865 (1992-09-01)
Vibrio cholerae synthesized the pigment melanin in response to specific physiological conditions that were stressful to the bacterium. Pigmentation was induced when V. cholerae was subjected to hyperosmotic stress in conjunction with elevated growth temperatures (above 30 degrees C). The
Andisheh Eslamboli et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 25(4), 769-777 (2005-01-28)
The therapeutic potential of glial cell line-derived neurotrophic factor (GDNF) for Parkinson's disease is likely to depend on sustained delivery of the appropriate amount to the target areas. Recombinant adeno-associated viral vectors (rAAVs) expressing GDNF may be a suitable delivery
CRC Handbook of Microbiology, 4, 1-1 (1974)
P M Knappskog et al.
Human molecular genetics, 4(7), 1209-1212 (1995-07-01)
Tyrosine hydroxylase (TH) catalyzes the conversion of L-tyrosine to L-dihydroxyphenylalanine (L-DOPA), the rate-limiting step in the biosynthesis of dopamine. Recently, we described a point mutation in hTH (Q381K) in a family of two siblings suffering from progressive L-DOPA-responsive dystonia (DRD)
Robert S Phillips et al.
Amino acids, 44(2), 529-532 (2012-07-28)
L-Tyrosine is converted to 3-bromo-L-tyrosine in good yield by reaction with 1.2 equiv. of DMSO in HBr/AcOH, while reaction with 2.2 equiv. of DMSO under comparable conditions results in formation of 3,5-dibromo-L-tyrosine in good yield. This is the simplest, safest

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.

Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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?

  3. Hi, is the recommended retest date based on established stability?

    1 answer
    1. 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.pdf

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