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ChemicalBook >> CAS DataBase List >> L-Isoleucine

L-Isoleucine

L-Isoleucine price.
  • $5 - $21960
  • Product name: L-Isoleucine
  • CAS: 73-32-5
  • MF: C6H13NO2
  • MW: 131.17
  • EINECS:200-798-2
  • MDL Number:MFCD00064222
  • Synonyms:(2S,3S)-2-Amino-3-methylpentansαure ;(2s,3s)-alpha-amino-beta-merthylvalericacid ;(2s,3s)-alpha-amino-beta-methyl-n-valericacid ;L-(+)-Isoleucine, Animal-Free;L-IsoleucineUSP, 98.5-101.5% (Titration: anhydrous basis);L-Isoleucine,99%e.e.;L-ISOLEUCINE BIOULTRA, >= 99.5% (NT);L-ISOLEUCINE, REAGENT GRADE, >=98% (
Price121 Properties Safety Information Description
121 prices
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Brand
  • aablocks
  • Acrotein
  • AHH
  • AK Scientific
  • Ambeed
  • Apolloscientific
  • Arctom
  • Biosynth
  • BroadPharm
  • Chem-Impex
  • ChemScene
  • Crysdot
  • DC Chemicals
  • Frontier Specialty Chemicals
  • Iris Biotech GmbH
  • Labseeker
  • Matrix Scientific
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
  • Usbiological
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  • 1053571000
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  • Manufactureraablocks
  • Product numberAA003R7U
  • Product descriptionL-Isoleucine 97%
  • Packaging25g
  • Price$7
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003R7U
  • Product descriptionL-Isoleucine ≥99%
  • Packaging50g
  • Price$12
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003R7U
  • Product descriptionL-Isoleucine ≥99%
  • Packaging100g
  • Price$16
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003R7U
  • Product descriptionL-Isoleucine 97%
  • Packaging500g
  • Price$23
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003R7U
  • Product descriptionL-Isoleucine 97%
  • Packaging1000g
  • Price$41
  • Updated2026-05-28
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-0186
  • Product descriptionL-Isoleucine 97%
  • Packaging100g
  • Price$29.7
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-0186
  • Product descriptionL-Isoleucine 97%
  • Packaging25g
  • Price$14.3
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberNA-0186
  • Product descriptionL-Isoleucine 97%
  • Packaging250g
  • Price$62.34
  • Updated2026-05-25
  • Buy
  • ManufacturerAHH
  • Product numberMT-16045
  • Product descriptionL-Isoleucine 97%
  • Packaging1000g
  • Price$508
  • Updated2026-05-26
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ93639
  • Product descriptionL-Isoleucine 98%
  • Packaging500g
  • Price$92
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ93639
  • Product descriptionL-Isoleucine 98%
  • Packaging1kg
  • Price$155
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberG141
  • Product descriptionL-Isoleucine, meet USP Specifications 98.5-101.0%
  • Packaging500g
  • Price$117
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberG141
  • Product descriptionL-Isoleucine, meet USP Specifications 98.5-101.0%
  • Packaging1kg
  • Price$199
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberG141
  • Product descriptionL-Isoleucine, meet USP Specifications 98.5-101.0%
  • Packaging25g
  • Price$27
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberG141
  • Product descriptionL-Isoleucine, meet USP Specifications 98.5-101.0%
  • Packaging5g
  • Price$18
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ93639
  • Product descriptionL-Isoleucine 98%
  • Packaging25g
  • Price$19
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA003R7U L-Isoleucine 97% 25g $7 2026-05-28 Buy
aablocks AA003R7U L-Isoleucine ≥99% 50g $12 2026-05-28 Buy
aablocks AA003R7U L-Isoleucine ≥99% 100g $16 2026-05-28 Buy
aablocks AA003R7U L-Isoleucine 97% 500g $23 2026-05-28 Buy
aablocks AA003R7U L-Isoleucine 97% 1000g $41 2026-05-28 Buy
Acrotein NA-0186 L-Isoleucine 97% 100g $29.7 2026-05-25 Buy
Acrotein NA-0186 L-Isoleucine 97% 25g $14.3 2026-05-25 Buy
Acrotein NA-0186 L-Isoleucine 97% 250g $62.34 2026-05-25 Buy
AHH MT-16045 L-Isoleucine 97% 1000g $508 2026-05-26 Buy
AK Scientific J93639 L-Isoleucine 98% 500g $92 2026-06-04 Buy
AK Scientific J93639 L-Isoleucine 98% 1kg $155 2026-06-04 Buy
AK Scientific G141 L-Isoleucine, meet USP Specifications 98.5-101.0% 500g $117 2026-06-04 Buy
AK Scientific G141 L-Isoleucine, meet USP Specifications 98.5-101.0% 1kg $199 2026-06-04 Buy
AK Scientific G141 L-Isoleucine, meet USP Specifications 98.5-101.0% 25g $27 2026-06-04 Buy
AK Scientific G141 L-Isoleucine, meet USP Specifications 98.5-101.0% 5g $18 2026-06-04 Buy
AK Scientific J93639 L-Isoleucine 98% 25g $19 2026-06-04 Buy
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Properties

Melting point :288 °C (dec.) (lit.)
alpha :41 º (c=4, 6N HCl)
Boiling point :225.8±23.0 °C(Predicted)
bulk density :470kg/m3
Density :1.2930 (estimate)
FEMA :4675 | L-ISOLEUCINE
refractive index :40.5 ° (C=4, 6mol/L HCl)
Flash point :168-170°C
storage temp. :Store below +30°C.
solubility :1 M HCl: 50 mg/mL
form :powder
pka :2.32, 9.76(at 25℃)
color :White to Off-white
PH :5.5-6.5 (40g/l, H2O, 20℃)
Odor :odorless
biological source :synthetic
optical activity :[α]20/D +41.0±1°, c = 5% in 6 M HCl
Water Solubility :41.2 g/L (50 ºC)
λmax :λ: 260 nm Amax: 0.07
λ: 280 nm Amax: 0.05 Merck :14,5179
Sublimation :168-170 ºC
JECFA Number :2118
BRN :1721792
Major Application :peptide synthesis
pharmaceutical (small molecule) Cosmetics Ingredients Functions :ANTISTATIC
SKIN CONDITIONING
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-/m0/s1
InChIKey :AGPKZVBTJJNPAG-WHFBIAKZSA-N
SMILES :CC[C@H](C)[C@H](N)C(O)=O
LogP :0.80
CAS DataBase Reference :73-32-5(CAS DataBase Reference)
NIST Chemistry Reference :Isoleucine(73-32-5)
EPA Substance Registry System :L-Isoleucine (73-32-5)

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.

Description

L-Isoleucine acts as an essential amino acid in human. It is used as a flavoring agent and nutritional supplement for foods. It is also used as an antipsychotic. It is employed as a component of proteins. Further, it stimulates immune function and promotes secretion of several hormones. In addition to this, it is used for hemoglobin formation and regulating blood sugar and energy levels.

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Suppliers and manufacturers

Hebei Hongtao Biotechnology Co., Ltd. Hebei chuangzhiyuan biotechnology co., LTD Wuxi Bikang Bioengineering Co., Ltd Zhengzhou Yuhe Food Additive Co. LTD Shandong Pingju Biotechnology Co., Ltd Jiangsu Duoyang Bioengineering Technology Co., Ltd Hebei Jijie Biotechnology Co., Ltd Jiangsu Huace Biotechnology Co., Ltd. Shanghai Bihe Biochemical Technology Co., Ltd J & K SCIENTIFIC LTD.