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 307 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 427
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
021-61259108 18621169097
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
12458
Advantage
60
JinYan Chemicals(ShangHai) Co.,Ltd.
Tel
13817811078
Fax
86-021-50426522,50426273
Email
sales@jingyan-chemical.com
Country
China
ProdList
9984
Advantage
60
Jia Xing Isenchem Co.,Ltd
Tel
0573-85285100 18627885956
Fax
0573-85285100
Email
isenchem@163.com
Country
China
ProdList
9551
Advantage
66
Accela ChemBio Co.,Ltd.
Tel
021-50795510 4000665055
Fax
021-50795055
Email
sales@accelachem.com
Country
China
ProdList
11660
Advantage
64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42982
Advantage
64
Chemsky (shanghai) International Co.,Ltd
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
15421
Advantage
60
XiaoGan ShenYuan ChemPharm co,ltd
Tel
15527768850
Email
1791901229@qq.com
Country
China
ProdList
8849
Advantage
52
Beijing Isomersyn Technology CO;LTD
Tel
010-82954736 13391601435
Email
sales@isomersyn.com
Country
China
ProdList
3296
Advantage
57
Shandong Xiya Chemical Co., Ltd
Tel
13355009207 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18739
Advantage
57
BEST-REAGENT
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11726
Advantage
57
China Langchem Inc.
Tel
0086-21-58956006
Fax
0086-21-58956100
Country
China
ProdList
7815
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14443
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9823
Advantage
79
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11714
Advantage
57
ZhengZhou HuaWen Chemical Co.Ltd
Tel
0370-2785118 15343847665
Fax
QQ：3470079902
Email
huawenchem@163.com
Country
China
ProdList
3206
Advantage
55
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9664
Advantage
60
Wuhan Fortuna Chemical Co., Ltd
Tel
027-027-59207852 13308628970
Fax
QQ3130921841
Email
buy@fortunachem.com
Country
China
ProdList
2893
Advantage
58
ShangHai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847 13636370518
Fax
021-55068248
Email
shyysw007@163.com
Country
China
ProdList
4941
Advantage
60
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9725
Advantage
55
Shanghai civi chemical technology co.,Ltd
Tel
86-21-34053660
Fax
86-21-34053661
Email
sale@labgogo.com
Country
China
ProdList
9872
Advantage
52
Thermo Fisher Scientific
Tel
800-810-5118
Fax
+86-10-84193589
Email
cnchemical@thermofisher.com
Country
China
ProdList
17779
Advantage
75
Beijing HuaMeiHuLiBiological Chemical
Tel
010-56205725
Fax
010-65763397
Email
waley188@sohu.com
Country
China
ProdList
12338
Advantage
58
Beijing innoChem Science & Technology Co.,Ltd.
Tel
400-810-7969 010-59572699
Fax
010-59572688
Email
ningzi.li@inno-chem.com.cn
Country
China
ProdList
6139
Advantage
55
Shanghai Topbiochem Technology Co., Ltd
Tel
+86-21-60341587
Fax
+86-21-61294319
Email
sales@topbiochem.com
Country
China
ProdList
6181
Advantage
58
Shanghai T&W Pharmaceutical Co., Ltd.
Tel
+86 21 61551611
Fax
+86 21 50676805
Country
China
ProdList
9901
Advantage
58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
Tel
025-66099280 17798518460
Fax
(1)02557626880
Email
cfzhang@aikonchem.com
Country
China
ProdList
19918
Advantage
55
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22519
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
18521735133 18521732826;
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25015
Advantage
65
The future of Shanghai Industrial Co., Ltd.
Tel
021-61552785
Fax
021-55660885
Email
sales@shshiji.com
Country
China
ProdList
9552
Advantage
55
Shanghai Ruji Biology Technology Co., Ltd.
Tel
+86-21-65211385-8001 36031160
Fax
+86-21-65211385-8004
Email
sales@shruji.com
Country
China
ProdList
3224
Advantage
55
Bsisun HK Imoprt And Export Company Limited
Tel
+86-18068513926
Fax
0086-519-85153711
Country
China
ProdList
1280
Advantage
55
Cantotech Chemicals, Ltd.
Tel
86-0755-86635001
Fax
86-0755-22642228
Email
cantotech@126.com
Country
China
ProdList
4576
Advantage
55
Shanghai Yolne Chemical Co., Ltd.
Tel
021-62960152
Fax
021-52212593
Email
934678158@qq.com
Country
China
ProdList
9906
Advantage
55
Shanghai Raise Chemical Technology Co.,Ltd
Tel
+86-021-50935922
Fax
+86-021-33847795
Country
China
ProdList
7876
Advantage
55
Nanjing Dulai Biotechnology Co., Ltd.
Tel
025-84699383-8003 18013301590
Fax
025-84699383-8003
Email
njduly@126.com
Country
China
ProdList
973
Advantage
55
TargetMol Chemicals Inc.
Tel
021-33632979 15002134094
Fax
021-33632979
Email
marketing@targetmol.com
Country
China
ProdList
7934
Advantage
58
Shanghai BeiZhuo Biotech Co., Ltd.
Tel
021-61119791,13386096464
Fax
021-50190009
Email
bzswkf@foxmail.com
Country
China
ProdList
3924
Advantage
50
Amatek Scientific Co. Ltd.
Tel
0512-56316828 4008675858
Fax
+86-512-56316826
Email
sales@amateksci.com
Country
China
ProdList
9908
Advantage
55
Beijing Universal Century Technology Co., Ltd.
Tel
400-8706899
Fax
400-8706899
Email
hysj_bj.com
Country
China
ProdList
3585
Advantage
55
Hubei XinyuanShun Chemical Co., Ltd.
Tel
13971561712, 13995564702, 027-50664929
Fax
027-50664927
Email
hbeixys2001@163.com
Country
China
ProdList
3123
Advantage
55
RiZhao LiDeShi Chemical Co., Ltd.
Tel
010-51268198
Fax
010-63833209
Email
leadershipchem@126.com
Country
China
ProdList
2549
Advantage
58
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