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M9625

L-Methionine

≥98% (HPLC)

Synonym(s):

(S)-2-Amino-4-(methylmercapto)butyric acid, L-2-Amino-4-(methylthio)butanoic acid

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5 g

Available to ship TODAYfromMILWAUKEE

$18.40
25 g

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$35.00
100 g

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$104.00
500 g

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$384.00
1 kg

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$498.00

About This Item

Linear Formula:
CH3SCH2CH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
149.21
NACRES:
NA.26
PubChem Substance ID:
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-562-9
MDL number:
Beilstein/REAXYS Number:
1722294

$18.40


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Product Name

L-Methionine, reagent grade, ≥98% (HPLC)

grade

reagent grade

Quality Segment

assay

≥98% (HPLC)

form

powder

color

white

mp

284 °C (dec.) (lit.)

application(s)

detection

SMILES string

CSCC[C@H](N)C(O)=O

InChI

1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1

InChI key

FFEARJCKVFRZRR-BYPYZUCNSA-N

Gene Information

rat ... Ggt1(116568)

Application

L-Methionine has been used in chloramine assay and malonaldehyde assay. It has also been used as a standard in methionine assay.

Biochem/physiol Actions

L-Methionine serves as precursor for transmethylation and transsulphuration. Methionine adenosylation results in the formation of S-adenosyl-L-methionine (SAM). SAM serves as a methyl donor to a number of substances. This methylation is significantly associated with the immune system functioning. Thus, SAM deficiency causes severe combined immunodeficiencies. L-Methionine′s metabolic product, glutathione, is known to regulate immune response and has antiviral action.

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This Item
M8439PHR124119-2190
grade

reagent grade

grade

-

grade

certified reference material, pharmaceutical secondary standard

grade

SAJ special grade

form

powder

form

powder

form

-

form

solid

assay

≥98% (HPLC)

assay

≥99%

assay

-

assay

≥98.5%

Quality Level

200

Quality Level

400

Quality Level

300

Quality Level

-

color

white

color

-

color

-

color

-

mp

284 °C (dec.) (lit.)

mp

284 °C (dec.) (lit.)

mp

284 °C (dec.) (lit.)

mp

284 °C (dec.) (lit.)


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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Questions

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  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/418/501/product-dating-information-06-25-mk.pdf

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  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

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