L-Leucine 98.5-101.5% Letterbox Friendly Pouch


Leucine is a branched-chain α-amino acid . Leucine is classified as a hydrophobic amino acid due to its aliphatic isobutyl side chain.

  • amino acid
  • organic synthesis

Minimum Assay: 98.5-101.5% (dried basis)
Molecular Formula: C6H13NO2
Molecular Weight: 131.18
Melting Point: >300 deg C
Specific Rotation [0]D20: 14.9-17.3 deg
pH; 5.5 – 7.0
Chloride (Cl): <0.05%
Heavy Metals (as Pb): <15ppm
Sulfate (SO4): <0.03%
Chromatographic Purity: Conforms to standard
Loss onf drying (105 deg for 3h): <0.2%
Residue on Ignition: <0.4%
Mesh Size: 95% through 80 mesh
50% through 100 mesh
Iron (Fe): <30ppm
Allegerns: None


Coliforms: <10cfu/g
Total Plate Count: <1000cfu/g
Yeasts: <100cfu/g
Staphylococcus aureu: negative/25g
Salmonella: negative/375g
Escherichia Coli: negative/25g

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 61-90-5
Einecs No: 200-522-0

HS Code: 2922498590


Following the UK’s departure from the EU on 1 January 2021, all European shipments are sent on a DAP Basis (Delivered at Place).

This means that the buyer will be liable for import VAT at their prevailing national rate and for orders over 150€ (including carriage) import duties will become chargeable at your prevailing national rate.

The Duty is ascertained by your national customs authority based on the HS Code of each product. The HS Code is shown in the “European Shipment” section of each product page.


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