ChemicalBook >> CAS DataBase List >>DL-Leucine
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;Leucine, DL-
- CBNumber:
- CB4365169
- Molecular Formula:
- C6H13NO2
- Molecular Weight:
- 131.17
- MDL Number:
- MFCD00063087
- MOL File:
- 328-39-2.mol
- MSDS File:
- SDS
Last updated:2025-01-27 09:38:02
| 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) |
| FDA UNII | 1QSS9D5DR6 |
| NIST Chemistry Reference | DL-Leucine(328-39-2) |
| EPA Substance Registry System | Leucine (328-39-2) |
| UNSPSC Code | 12352209 |
| NACRES | NA.26 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| Hazard Codes | Xn | |||||||||
| Safety Statements | 22-24/25-36 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29224995 | |||||||||
| NFPA 704 |
|
DL-Leucine price More Price(34)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | L7875 | DL-Leucine ≥99% (HPLC) | 328-39-2 | 25g | $65.6 | 2024-03-01 | Buy |
| Sigma-Aldrich | 8.14986 | DL-Leucine for synthesis | 328-39-2 | 50g | $111 | 2024-03-01 | Buy |
| TCI Chemical | L0028 | DL-Leucine >98.0%(T) | 328-39-2 | 25g | $29 | 2024-03-01 | Buy |
| Alfa Aesar | A10590 | DL-Leucine, 99% | 328-39-2 | 50g | $52.65 | 2024-03-01 | Buy |
| Alfa Aesar | A10590 | DL-Leucine, 99% | 328-39-2 | 250g | $182.65 | 2024-03-01 | Buy |
DL-Leucine Chemical Properties,Uses,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
Preparation Products
1of2
Global( 447)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12788 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531153977 | allison@yan-xi.com | China | 5854 | 58 |
| Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-18712993135 | sales01@tairunfaz.com | China | 8051 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18134 | 58 |
| airuikechemical co., ltd. | +86-18353166132 +86-18353166132 | sales02@airuikechemical.com | China | 983 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29730 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 19919 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21628 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | FandaChem@Gmail.com | China | 3110 | 55 |
View Lastest Price from DL-Leucine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-05-14 | DL-Leucine
328-39-2
|
US $30.00 / kg | 1kg | 0.99 | 20 tons | Hebei Fengjia New Material Co., Ltd | |
 |
2025-05-14 | (±)-Leucine
328-39-2
|
US $48.00 / g | 98.66% | 10g | TargetMol Chemicals Inc. | ||
 |
2025-05-12 | DL-Leucine
328-39-2
|
US $0.00-0.00 / kg | 1kg | 98%-102% | 10000kg | WUHAN FORTUNA CHEMICAL CO., LTD |
-
- DL-Leucine
328-39-2
- US $30.00 / kg
- 0.99
- Hebei Fengjia New Material Co., Ltd
-
- (±)-Leucine
328-39-2
- US $48.00 / g
- 98.66%
- TargetMol Chemicals Inc.
-
- DL-Leucine
328-39-2
- US $0.00-0.00 / kg
- 98%-102%
- WUHAN FORTUNA CHEMICAL CO., LTD
(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>
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)
C14629300 DL-Leucine
DL -Leucine
(±)-Leucine
328-39-2
Amino Acid Derivatives
Specialty Synthesis
Leucine
Peptide Synthesis