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Merck

M9500

Sigma-Aldrich

DL-甲硫氨酸

≥99%, suitable for cell culture and insect cell cutlure

别名:

(±)-2-氨基-4-(甲巯基)丁酸, DL-2-氨基-4-(甲硫基)丁酸

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100 G
$97.60
500 G
$173.00
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$183.00

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100 G
$97.60
500 G
$173.00
1 KG
$183.00

About This Item

线性分子式:
CH3SCH2CH2CH(NH2)COOH
CAS号:
分子量:
149.21
Beilstein:
636185
EC 号:
MDL编号:
UNSPSC代码:
12352209
PubChem化学物质编号:
NACRES:
NA.26

$97.60


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产品名称

DL-甲硫氨酸, ≥99%

方案

≥99%

表单

powder

技术

cell culture | insect: suitable
cell culture | mammalian: suitable

颜色

white

mp

280 °C (dec.) (lit.)

溶解性

H2O: soluble

应用

peptide synthesis

SMILES字符串

CSCCC(N)C(O)=O

InChI

1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)

InChI key

FFEARJCKVFRZRR-UHFFFAOYSA-N

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一般描述

DL-蛋氨酸是含硫的必需氨基酸。[1]蛋氨酸由不对称碳组成,以D(右旋)和L (左旋)光学异构体存在。L-蛋氨酸被认为具有生物活性。D和L-异构体的外消旋混合物形成 DL-蛋氨酸,其是市场上可买到的蛋氨酸。[2]

应用

DL-蛋氨酸已用于研究其对尼罗罗非鱼的生长和饲料使用的影响。[3]它也被用作动物模型中标准饮食的一部分。[4][5]

生化/生理作用

DL-蛋氨酸是一种在防御氧化应激中起作用的氨基酸。
蛋氨酸可预防头发、皮肤和指甲相关疾病。它提高了肝脏中卵磷脂的产量,从而降低了胆固醇水平。它天然地用作重金属螯合剂,调节尿液中的氨浓度。这可以改善膀胱刺激。众所周知,蛋氨酸也诱导毛发生长。[1]

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

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Dietary Crystalline DL-Methionine Supplementation of Oilseed Meal-Based Diets: Effects on Growth and Feed Utilization of Juvenile Nile Tilapia (Oreochromis niloticus L.)
Agbo NW, et al.
American Journal of Experimental Agriculture, 4(11), 1385-1396 (2014)
Gel growth and characterization of beta-DL-methionine
Ramachandran E and Natarajan S
Crystal Research and Technology, 41(4), 411-415 (2006)
DL-Methionine from Methional and Hydrogen Cyanide - Cost Analysis - Methionine E11A, 6-6 (2016)
Partial replacement of fishmeal and fish oil by algal meals in diets of red drum Sciaenops ocellatus
Perez-Velazquez M, et al.
Aquaculture (Amsterdam, Netherlands), 487, 41-50 (2018)
Glucose homeostasis in mice is transglutaminase 2 independent
Iismaa SE, et al.
PLoS ONE, 8(5), e63346-e63346 (2013)

Questions

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  1. 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

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  2. 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

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