ChemicalBook > CAS DataBase List > DL-Leucine

DL-Leucine

Product Name
DL-Leucine
CAS No.
328-39-2
Chemical Name
DL-Leucine
Synonyms
DL-LEU;H-DL-LEU-OH;NSC 9252;DL-Leucin;ucine, dl;DL-Leu-OH;leucine,dl;DL-LEUCINE;Leucine, DL-;(RS)-Leucine
CBNumber
CB4365169
Molecular Formula
C6H13NO2
Formula Weight
131.17
MOL File
328-39-2.mol
More
Less

DL-Leucine Property

Melting point:
293-296 °C (subl.) (lit.)
alpha 
[α]D20 -3.0～+3.0゜ (c=4, HCl)
Boiling point:
225.8±23.0 °C(Predicted)
Density 
1,293 g/cm3
refractive index 
1.4630 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
1 M HCl: soluble
form 
Fine Crystalline Powder
pka
pKa: 9.744(25°C)
color 
White
Odor
wh. sm. cryst. or cryst. powd., odorless, sl. bitter taste
Water Solubility 
soluble
Merck 
14,5451
BRN 
636005
Stability:
Stable. Incompatible with strong oxidizing agents.
LogP
0.799 (est)
CAS DataBase Reference
328-39-2(CAS DataBase Reference)
NIST Chemistry Reference
DL-Leucine(328-39-2)
EPA Substance Registry System
Leucine (328-39-2)
More
Less

Safety

Hazard Codes 
Xn
Safety Statements 
22-24/25-36
WGK Germany 
3
TSCA 
Yes
HS Code 
29224995
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
L7875
Product name
DL-Leucine
Purity
≥99% (HPLC)
Packaging
25g
Price
$65.6
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14986
Product name
DL-Leucine
Purity
for synthesis
Packaging
50g
Price
$111
Updated
2024/03/01
TCI Chemical
Product number
L0028
Product name
DL-Leucine
Purity
>98.0%(T)
Packaging
25g
Price
$29
Updated
2024/03/01
Alfa Aesar
Product number
A10590
Product name
DL-Leucine, 99%
Packaging
50g
Price
$52.65
Updated
2024/03/01
Alfa Aesar
Product number
A10590
Product name
DL-Leucine, 99%
Packaging
250g
Price
$182.65
Updated
2024/03/01
More
Less

DL-Leucine Chemical Properties,Usage,Production

Chemical Properties

White crystalline powder

Uses

DL-Leucine is a racemic mixture of the D- and L- enantiomers of Leucine. DL-Leucine is used to form benzimidazole and pyrimidine hydroxy azo dyes with various transition metals. DL-Leucine may be used for the evaluation of chiral amino acid separation techniques.

DL-Leucine is used for the following applications:

  • Used as a standard for the measurement of free amino acids
  • Used in the process of tritiated leucine uptake
  • Used in solution preparation (various organics were used in different combinations and concentrations to model complex surface tension effects, DL-Leucine is one of them). It is chosen due to its presence in atmospheric aerosols and ice nucleation activity as well as for its surfactant character

Definition

ChEBI: A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group.

DL-Leucine Preparation Products And Raw materials

Raw materials

SODIUM HYPOBROMITE Carbon dioxide alfa-Bromoisovalericacid Concentrated sulfuric acid

Preparation Products

D-2-Amino-4-methylpentanoic acid
More
Less

DL-Leucine Suppliers

Americas 1 Austria 1 Belgium 3 China 314 Europe 3 France 2 Germany 11 India 7 Japan 9 Poland 1 Slovakia 1 South Korea 1 Switzerland 3 United Kingdom 13 United States 62 USA 1 Global 433
Dr. Ehrenstorfer GmbH
Tel
--
Fax
--
Email
info@analytical-standards.com
Country
Germany
ProdList
5545
Advantage
66
Merck Millipore
Tel
--
Fax
--
Email
ccc@merckgroup.com
Country
Germany
ProdList
2008
Advantage
58
Alfa Aesar, Thermo Fisher Scientific
Tel
--
Fax
--
Email
es@alfa.com
Country
Germany
ProdList
5123
Advantage
58
Burmester Pharmatrade Gmbh
Tel
--
Fax
--
Email
info@burmester-pharma.de
Country
Germany
ProdList
1347
Advantage
58
K.-W. Pfannenschmidt GmbH
Tel
--
Fax
--
Email
nfo@pfannenschmidt.de
Country
Germany
ProdList
267
Advantage
58
CHEMOS GmbH & Co. KG
Tel
--
Fax
--
Email
chemos@chemos.de
Country
Germany
ProdList
6727
Advantage
58
chemcube
Tel
--
Fax
--
Email
sales@chemcube.eu
Country
Germany
ProdList
4083
Advantage
34
ABCR GmbH & CO. KG
Tel
--
Fax
--
Email
info@abcr.de
Country
Germany
ProdList
6831
Advantage
75
PARAGOS
Tel
--
Fax
--
Email
info@paragos.com
Country
Germany
ProdList
6371
Advantage
39
Service Chemical Inc.
Tel
--
Fax
--
Email
sales@chemos-group.com
Country
Germany
ProdList
6350
Advantage
71
Merck Schuchardt OHG
Tel
--
Fax
--
Email
schuchardt-vertrieb@merck.de
Country
Germany
ProdList
5827
Advantage
74
More
Less

View Lastest Price from DL-Leucine manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
DL-Leucine 328-39-2
Price
US $65.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000kg/week
Release date
2024-05-27
Hebei Weibang Biotechnology Co., Ltd
Product
DL-Leucine 328-39-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-28
Hebei Yanxi Chemical Co., Ltd.
Product
DL-Leucine 328-39-2
Price
US $20.00-1.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-09-22

328-39-2, DL-LeucineRelated Search:

L-Leucine DL-Ornithine hydrochloride DL-Homoserine DL-Histidine DL-Pyroglutamic acid DL-Arginine hydrochloride monohydrate DL-Cysteine DL-tert-Leucine allo-DL-Threonine 2-amino-3-(1H-indol-3-yl)propanamide 4-HYDROXYMANDELIC ACID MONOHYDRATE DL-Cysteine hydrochloride DL-Glutamine N-Cbz-L-Leucine DL-2-AMINO-3-METHYLPENTANOIC ACID GLYCYL-DL-LEUCINE Ammonia 4-Methylvaleric acid

  • (R,S)-2-Amino-4-methyl-pentanoicacid
  • 2-Amino-4-methylvalericacid
  • Leucine, DL-
  • A-AMINO-ISO-CAPROIC ACID
  • leucine,dl
  • (+/-)-2-Amino-4-methylpentanoic acid~H-DL-Leu-OH
  • DL-LEUCINE, 99+%
  • DL-LEUCINE BIOSYNTH
  • DL-LEUCINE FOR BIOCHEMISTRY
  • (n)-2-amino-4-methylpentanoic acid
  • ACETYL-DL-LEUCINE, N-(P)
  • (RS)-Leucine
  • Leucine (9CI)
  • Leucine, DL- (8CI)
  • NSC 9252
  • DL-Leucin
  • Amino-4-methylvaleric acid
  • ucine, dl
  • DL-α-Aminoisocaproic acid
  • rac-(2R*)-4-Methyl-2-aminovaleric acid
  • H-DL-LEU-OH
  • DL-A-AMINO-G-METHYLVALERIC ACID
  • DL-A-AMINOISOCAPROIC ACID
  • DL-2-AMINO-4-METHYLPENTANOIC ACID
  • DL-2-AMINO-4-METHYLVALERIANIC ACID
  • DL-2-AMINO-4-METHYLVALERIC ACID
  • DL-LEUCINE
  • DL-LEU
  • (2R)-2-ammonio-4-methylpentanoate
  • rac-(R*)-2-Amino-4-methylpentanoic acid
  • DL-Leucine, Crystal
  • ALPHA-AMINO-ISO-CAPROIC ACID
  • (+/-)-AMINO-4-METHYLPENTANOIC ACID
  • DL-Leucine, 99+% 25GR
  • Leucin-Radikal
  • DL-LEUCINE FOR SYNTHESIS 250 G
  • DL-LEUCINE FOR SYNTHESIS 50 G
  • DL-Leucine 0.1
  • DL-Leucine Vetec(TM) reagent grade, 99%
  • DL-Leucine≥ 98.5% (Assay)
  • DL-Leu-OH
  • DL-LEUCINE, VETEC
  • DL-Leucine, 98%, for bio
  • DL-Leucine&gt
  • DL-2-Aminmo-4-methylvalerianic acid
  • DL-Leucine USP/EP/BP
  • dextro,laevo-leucine
  • CAS328-39-2 DL-2-Amino-4-methylpentanoic acid
  • (±)-Leucine (DL-Leucine)
  • C14629300 DL-Leucine
  • Glycerol Impurity 104
  • 328-39-2
  • Amino Acid Derivatives
  • Specialty Synthesis
  • Leucine
  • Peptide Synthesis
  • Leucine [Leu, L]
  • alpha-Amino Acids