Skip to Content
Merck
All Photos(1)

Key Documents

76526

Supelco

L-Leucine

certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Synonym(s):

(S)-2-Amino-4-methylpentanoic acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
(CH3)2CHCH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
131.17
Beilstein:
1721722
EC Number:
MDL number:
UNSPSC Code:
41116107
eCl@ss:
32160406
PubChem Substance ID:
E Number:
E641
NACRES:
NA.24

Pricing and availability is not currently available.

grade

certified reference material
TraceCERT®

Quality Level

product line

TraceCERT®

analyte chemical class(es)

amino acids, peptides, proteins

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

color

white

mp

>300 °C (lit.)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

format

neat

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
417821715445183
MRS Agar suitable for microbiology, NutriSelect® Basic

69964

MRS Agar

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

form

powder

form

powder

form

powder

form

powder

composition

agar, 12 g/L , D(+)-glucose, 20 g/L , manganous sulfate monhydrate, 0.05 g/L , sodium acetate, 5 g/L , universal peptone, 10 g/L , dipotassium hydrogen phosphate, 2 g/L , meat extract, 5 g/L , yeast extract, 5 g/L , magnesium sulfate (equivalent to 0.2 g/lheptahydrate), 0.1 g/L , triammonium citrate, 2 g/L

composition

agar, 15.0 g/L , ammonium citrate, 2.0 g/L , bromocresol green, 0.04 g/L , captan, 0.004 g/L , dextrose, 20.0 g/L , dipotassium phosphate, 2.0 g/L , magnesium sulfate, 0.1 g/L , manganese sulfate, 0.05 g/L , 2-phenylethyl alcohol, 3.0 g/L , proteose peptone (vegetable), 10.0 g/L , sodium acetate, 5.0 g/L , yeast extract, 5.0 g/L

composition

agar, 20 g/L , beef extract, 10 g/L , casein enzymic hydrolysate, 10 g/L , dextrose, 20 g/L , dipotassium phosphate, 2 g/L , polysorbate 80, 1 g/L , tomato juice, 2 g/L , yeast extract, 5 g/L

composition

agar, 10 g/L , disodium hydrogen phosphate monohydrate, 4 g/L , D(+)-glucose, 2 g/L , sodium azide, 0.4 g/L , 2,3,5-triphenyltetrazolium chloride, 0.1 g/L , tryptose, 20 g/L , yeast extract, 5 g/L

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

application(s)

agriculture
bioburden testing
environmental
food and beverages, microbiology

application(s)

agriculture
bioburden testing
environmental
food and beverages, microbiology

application(s)

environmental
food and beverages, microbiology

application(s)

bioburden testing
clinical testing
environmental
food and beverages
water monitoring, microbiology

General description

L-Leucine is an important and essential branched chain amino acid.[1][2] It shows activity with the mechanistic target of rapamycin(mTOR) pathway, involved in the synthesis of proteins and satiety.[2]
This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.

Check out the entire portfolio of our amino acids certified reference materials (CRM)

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany

Not finding the right product?  

Try our Product Selector Tool.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


  • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number

    Don't see the Right Version?

    If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

    Already Own This Product?

    Find documentation for the products that you have recently purchased in the Document Library.

    Visit the Document Library

    Customers Also Viewed

    Fleck M and Petrosyan.MA et al.
    Salts of Amino Acids: Crystallization, Structure and Properties (2014)
    Mullin.EG, et al. et al.
    Integrative Weight Management: A Guide for Clinicians (2014)
    William I A Haynes et al.
    The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(11), 4804-4814 (2013-03-15)
    The identification of a hyperdirect cortico-subthalamic nucleus connection highlighted the important role of the subthalamic nucleus (STN) in regulating behavior. However, this pathway was shown primarily from motor areas. Hyperdirect pathways associated with cognitive and motivational cortical regions are particularly
    Qian Wang et al.
    Journal of the National Cancer Institute, 105(19), 1463-1473 (2013-09-21)
    L-type amino acid transporters (LATs) uptake neutral amino acids including L-leucine into cells, stimulating mammalian target of rapamycin complex 1 signaling and protein synthesis. LAT1 and LAT3 are overexpressed at different stages of prostate cancer, and they are responsible for
    T Yoshimasa et al.
    The Journal of clinical investigation, 69(3), 643-650 (1982-03-01)
    To elucidate the physiological and pathophysiological significance of methionine- and leucine-enkephalin (Met-and Leu-enkephalin, respectively) in human sympathoadrenal system, the contents of these peptides in normal human sympathetic nervous system, adrenal medulla, and pheochromocytomas were determined by specific radioimmunoassays combined with

    Protocols

    Separation of L-Alanine; Glycine; L-Valine; L-Leucine; L-Isoleucine; L-Proline; L-Methionine; L-Serine; L-Threonine; L-Phenylalanine; L-Aspartic acid; L-4-Hydroxyproline; L-Cysteine; L-Glutamic acid; L-Asparagine; L-Lysine; L-Glutamine; L-Histidine; L-Tyrosine; L-Tryptophan; L-Cystine

    Chromatograms

    application for HPLC

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

    Contact Technical Service