DL-Isoleucine
- CAS No.
- 443-79-8
- Chemical Name:
- DL-Isoleucine
- Synonyms
- 2-AMINO-3-METHYLPENTANOIC ACID;FEMA 3295;H-DL-ILE-OH;(2RS,3RS)-2-Amino-3-methylpentanoic acid;DL-Isoleucine (mixture of 4 stereoisomers);DL-Ile-OH;H-DL-lle-OH;DL-Isoleucin;DL-ISOLEVCINE;DL-ISOLEUCINE
- CBNumber:
- CB1452310
- Molecular Formula:
- C6H13NO2
- Molecular Weight:
- 131.17
- MDL Number:
- MFCD00004268
- MOL File:
- 443-79-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| DL-Isoleucine ReagentPlus , 99% | 298689 | 10g | $71 |
| DL-Isoleucine ReagentPlus , 99% | 298689 | 50g | $178 |
| 2-Amino-3-methylpentanoic Acid (mixture of stereoisomers) | I0180 | 5G | $39 |
| 2-Amino-3-methylpentanoic Acid (mixture of stereoisomers) | I0180 | 25G | $134 |
| DL-Isoleucine (mixture of 4 stereoisomers) >98.0%(T) | I0180 | 5g | $37 |
| More product size | |||
| 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 |
| FLAVIS Number | 17.010 | 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. |
| Major Application | flavors and fragrances |
| Cosmetics Ingredients Functions |
SKIN CONDITIONING ANTISTATIC HAIR CONDITIONING |
| InChI | 1S/C6H13NO2/c1-3-4(2)5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t4-,5-/m1/s1 |
| InChIKey | AGPKZVBTJJNPAG-UHFFFAOYSA-N |
| SMILES | CC[C@@H](C)[C@@H](N)C(O)=O |
| LogP | 0.73 |
| CAS DataBase Reference | 443-79-8(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | DL-ISOLEUCINE |
| FDA UNII | 5HX0BYT4E3 |
| NIST Chemistry Reference | DL-Isoleucine(443-79-8) |
| EPA Substance Registry System | Isoleucine (443-79-8) |
| UNSPSC Code | 12352209 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 20/21/22-40 | |||||||||
| Safety Statements | 22-24/25-36 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29224995 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
DL-Isoleucine price More Price(59)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 298689 | DL-Isoleucine ReagentPlus , 99% | 443-79-8 | 10g | $71 | 2026-04-30 | Buy |
| Sigma-Aldrich | 298689 | DL-Isoleucine ReagentPlus , 99% | 443-79-8 | 50g | $178 | 2026-04-30 | Buy |
| TCI Chemical | I0180 | 2-Amino-3-methylpentanoic Acid (mixture of stereoisomers) | 2095501-92-9 | 5G | $39 | 2025-07-31 | Buy |
| TCI Chemical | I0180 | 2-Amino-3-methylpentanoic Acid (mixture of stereoisomers) | 2095501-92-9 | 25G | $134 | 2025-07-31 | Buy |
| TCI Chemical | I0180 | DL-Isoleucine (mixture of 4 stereoisomers) >98.0%(T) | 443-79-8 | 5g | $37 | 2024-03-01 | Buy |
DL-Isoleucine Chemical Properties,Uses,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
white powder
Chemical Properties
dl-Isoleucine has a caramel, maple syrup odor and slightly bitter taste
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
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| Shanghai Yingrui Biopharma Co., Ltd. | +86-21-33585366 - 03@ | sales03@shyrchem.com | CHINA | 738 | 60 |
| Fluoropharm Co., Ltd. | +86-0571-85586753 +86-13336034509 | sales@fluoropharm.com | China | 1445 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| GenicBio Limited | +86-21-37621270 | service@genicbio.com | CHINA | 991 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Xi'an Kono chem co., Ltd., | 029-86107037 13289246953 | info@konochemical.com | China | 1169 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
Related articles
- Synthesis of DL-Isoleucine
- Isoleucine (symbol Ile or I)is an α-amino acid that is used in the biosynthesis of proteins. It is classified as a non-polar, ....
- Oct 29，2019
View Lastest Price from DL-Isoleucine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-24 | DL-Isoleucine
443-79-8
|
1KG | 98%min;food grade | 500kgs | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-07-06 | DL-Isoleucine
443-79-8
|
$55.00-550.00 | 1KG | 0.99 | 20 tons | Zibo Hangyu Biotechnology Development Co., Ltd | |
 |
2026-03-20 | DL-Isoleucine
443-79-8
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- DL-Isoleucine
443-79-8
- $0.00
- 98%min;food grade
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- DL-Isoleucine
443-79-8
- $55.00-550.00
- 0.99
- Zibo Hangyu Biotechnology Development Co., Ltd
-
- DL-Isoleucine
443-79-8
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
