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 305 Europe 3 France 2 Germany 11 India 7 Japan 9 Poland 1 Slovakia 1 South Korea 1 Switzerland 3 United Kingdom 13 United States 63 USA 1 Global 425
Watson Biotechnology Co.,Ltd
Tel
027-027-59207879 18140587686
Fax
QQ：1972026995
Email
kf@3600chem.com
Country
China
ProdList
4699
Advantage
55
Huaibei Desung Biotech Co., Ltd.
Tel
0561-2337889 13515618601
Email
390478052@qq.com
Country
China
ProdList
1802
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
Sichuan Tongsheng Amino acids Co.,Ltd.
Tel
0838-2809458 13350585791
Fax
+86-838-2274207
Email
pharm@biots.cn
Country
China
ProdList
348
Advantage
66
TAIYUAN RHF CO.,LTD.
Tel
+86 351 7031519
Fax
+86 351 7031519
Email
sales@RHFChem.com
Country
China
ProdList
2341
Advantage
56
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Beijing Ouhe Technology Co., Ltd
Tel
010-82967028 13552068683
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12426
Advantage
60
More
Less

View Lastest Price from DL-Leucine manufacturers

airuikechemical co., ltd.
Product
dl-leucine 328-39-2
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
20 tons
Release date
2024-04-10
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
Hebei Guanlang Biotechnology Co., Ltd.
Product
DL-Leucine 328-39-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2022-10-12

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
  • Glycerol Impurity 104
  • (±)-Leucine (DL-Leucine)
  • 328-39-2
  • Amino Acid Derivatives
  • Specialty Synthesis
  • Leucine
  • Peptide Synthesis
  • Leucine [Leu, L]
  • alpha-Amino Acids
  • Amino Acids