Uses Description References
ChemicalBook > CAS DataBase List > DL-Isoleucine

DL-Isoleucine

Uses Description References
Product Name
DL-Isoleucine
CAS No.
443-79-8
Chemical Name
DL-Isoleucine
Synonyms
DL-Ile-OH;FEMA 3295;H-DL-lle-OH;H-DL-ILE-OH;DL-Isoleucin;DL-ISOLEVCINE;DL-ISOLEUCINE;Isoleucine, DL-;DL-Isoleucine,99%;DL-Isoleucine 
CBNumber
CB1452310
Molecular Formula
C6H13NO2
Formula Weight
131.17
MOL File
443-79-8.mol
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DL-Isoleucine Property

Melting point:
290 °C (dec.) (lit.)
alpha 
[α]D20 -2.0～+2.0°(c=4,HCl)
Boiling point:
225.8±23.0 °C(Predicted)
Density 
1.2930 (estimate)
refractive index 
1.4630 (estimate)
FEMA 
3295 | D,L-ISOLEUCINE
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
pka
pKa: 9.758(25°C)
form 
Powder
color 
White
Odor
at 100.00 %. odorless
Odor Type
odorless
biological source
synthetic
Water Solubility 
22.3 g/L (25 ºC)
Merck 
14,5179
JECFA Number
1422
BRN 
1721796
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
AGPKZVBTJJNPAG-UHFFFAOYSA-N
LogP
0.73
CAS DataBase Reference
443-79-8(CAS DataBase Reference)
NIST Chemistry Reference
DL-Isoleucine(443-79-8)
EPA Substance Registry System
Isoleucine (443-79-8)
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Safety

Hazard Codes 
Xn
Risk Statements 
20/21/22-40
Safety Statements 
22-24/25-36
WGK Germany 
3
TSCA 
Yes
HS Code 
29224995
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
298689
Product name
DL-Isoleucine
Purity
ReagentPlus , 99%
Packaging
10g
Price
$66.7
Updated
2025/07/31
Sigma-Aldrich
Product number
298689
Product name
DL-Isoleucine
Purity
ReagentPlus , 99%
Packaging
50g
Price
$167
Updated
2025/07/31
TCI Chemical
Product number
I0180
Product name
2-Amino-3-methylpentanoic Acid (mixture of stereoisomers)
Packaging
5G
Price
$39
Updated
2025/07/31
TCI Chemical
Product number
I0180
Product name
2-Amino-3-methylpentanoic Acid (mixture of stereoisomers)
Packaging
25G
Price
$134
Updated
2025/07/31
TCI Chemical
Product number
I0180
Product name
DL-Isoleucine (mixture of 4 stereoisomers)
Purity
>98.0%(T)
Packaging
5g
Price
$37
Updated
2024/03/01
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DL-Isoleucine Chemical Properties,Usage,Production

Uses

DL-Isoleucine is used in biochemical reagents and as a nutrient fortifier, etc.

Description

DL-Isoleucine appears as a white crystalline powder. It has a caramel, maple syrup odor and slightly bitter taste. It is used as a flavor ingredient in baked goods, breakfast cereals, condiments, meat products, milk products, nonalcoholic beverages, and soups.

References

[1] George A. Burdock, Fenaroli’s Handbook of Flavor Ingredients, Sixth Edition, 2016

Description

dl-Isoleucine is flavorless. It may be prepared from the corresponding aldehyde by Bucherer’s reaction.

Chemical Properties

dl-Isoleucine has a caramel, maple syrup odor and slightly bitter taste

Chemical Properties

white powder

Definition

ChEBI: A branched chain amino acid that consists of 3-methylpentanoic acid bearing an amino substituent at position 2.

Preparation

From the corresponding aldehyde by Bucherer’s reaction.

reaction suitability

reaction type: solution phase peptide synthesis

DL-Isoleucine Preparation Products And Raw materials

Raw materials

Hippuric acid 2-Bromo-3-methylvalericacid Acetic anhydride 2-Butanone Hydriodic acid DL-ALLO-ISOLEUCINE Phosphorus

Preparation Products

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DL-Isoleucine Suppliers

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HBCChem, Inc.
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View Lastest Price from DL-Isoleucine manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
DL-Isoleucine 443-79-8
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
98%min;food grade
Supply Ability
500kgs
Release date
2021-07-06
Hebei Chuanghai Biotechnology Co., Ltd
Product
DL-Isoleucine 443-79-8
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-15
Henan Aochuang Chemical Co.,Ltd.
Product
DL-Isoleucine 443-79-8
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1Ton
Release date
2022-09-20

443-79-8, DL-IsoleucineRelated Search:

4-HYDROXYISOLEUCINE ALTRENOGEST DL-3-Methylvaleric acid D-Alloisoleucine 6-Aminocaproic acid N-CARBOBENZOXY-DL-LEUCINE N,N-Dimethyl-1,4-phenylenediamine 3-Aminopyridine Glycine (2R,3R)-2-Amino-3-methylpentanoic acid L-Isoleucine Estradiol valerate Malic acid DL-Glutamic acid DL-HOMOCYSTEIC ACID DL-Homocystine Tris(hydroxymethyl)aminomethane Fmoc-Ile-OH

  • DL-Ile-OH
  • (2RS,3RS)-2-Amino-3-methylpentanoic acid
  • DL-IsoleucineFCC, ≥ 99% (Assay)
  • DL-ISOLEUCINE 98.5+% FCC
  • DL-ISOLEUCINE MIXTURE OF THE 4 STEREO- &
  • IODOTUBERCIDIN FROM RAT OR GUINEA PI
  • DL-ISOLEUCINE, GRADE I
  • H-Dl-Ile-Oh(Synthesis)
  • Dl-IsoleucineForBiochemistry99+%
  • (n)-2-amino-3-methylpentanoic acid
  • DL-ISOLEVCINE
  • DL-Isoleucine (mixture of 4 stereoisomers)
  • DL-2-Amino-3-methylvaleric acid
  • rac-(2R*,3R*)-2-Amino-3-methylpentanoic acid
  • DL-Isoleucine,99%
  • DL-Isoleucine,DL-2-Amino-3-methylpentanoic acid
  • (Mixture of 4 stereoisoMers)
  • DL-Isoleucine&nbsp
  • H-DL-lle-OH
  • DL-Isoleucine ReagentPlus(R), 99%
  • DL-Isoleucine Vetec(TM) reagent grade, 98%
  • rel-(2S,3S)-2-amino-3-methyl-pentanoic acid
  • (R*,R*)-2-amino-3-methyl-pentanoicacid
  • 2-Animo-3-methylpentanoicacid
  • DL-Isoleucin
  • Isoleucine, DL-
  • H-DL-ILE-OH
  • FEMA 3295
  • DL-ISOLEUCINE
  • DL-A-AMINO-B-METHYLVALERIC ACID
  • DL-2-AMINO-3-METHYLPENTANOIC ACID
  • 2-AMINO-3-METHYLPENTANOIC ACID
  • (+/-)-2-Amino-3-methylpentanoic acid~H-DL-Ile-OH
  • dl-isoleucine mixt. of 50% dl-isoleucine +50% dl-alloisoleuc
  • DL-ISOLEUCINE CELL CULTURE TESTED
  • DL-ISOLEUCINE MIXT. OF 50% DL-ISOLEUCIN&
  • DL-Isoleucine(mixtureof4stereoisomers)&gt
  • 2-amino-3-methylpentanoicaci
  • DL-Isoleucine (mixture of diastereoisomers)
  • DL-Isoleucine USP/EP/BP
  • dextro,laevo-isoleucine
  • DL-Isoleucine 443-79-8
  • Furagin Impurity 2
  • <sc>DL</sc>-Isoleucine
  • 443-79-8
  • 333-79-8
  • CARBOXYLIC ACID
  • Amino Acid Derivatives
  • Specialty Synthesis
  • Peptide Synthesis
  • Isoleucine [Ile, I]
  • alpha-Amino Acids
  • Amino Acids
  • Biochemistry
  • Amino Acids
  • API