Basic information
- Standard SMILES
CC(C)CC(N)C(=O)O- InChIKey
ROHFNLRQFUQHCH-UHFFFAOYSA-N- Molecular formula
- C6H13NO2
- Average molar mass
- 131.17 g/mol
- Monoisotopic mass
- 131.09462866
Overview
Leucine is 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. It has a role as a Daphnia magna metabolite. It is a branched-chain amino acid and an alpha-amino acid. It contains an isobutyl group. It is a conjugate base of a leucinium. It is a conjugate acid of a leucinate.
Names & identifiers
- Preferred name
- DL-leucine
- IUPAC
- 2-amino-4-methylpentanoic acid
- English name
- D-2-Amino-4-methylpentanoic acid
- Molecular formula
- C6H13NO2
- Molecular weight
- 131.17
Names & synonyms
Show more names
Database identifiers
- CAS
328-38-1、328-39-2、61-90-5- PubChem CID
- 857
- DTXSID
DTXSID00859050- ChEMBL
CHEMBL46575- ChEBI
CHEBI:25017- UNII
- 1QSS9D5DR6
- EC Number
- 206-328-2
- Nikkaji
- J1.285H
Properties
Computed structural properties
- XLogP
- -1.5
- Topological polar surface area
- 63.3 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 3
- Heavy atoms
- 9
- Formal charge
- 0
- Complexity
- 101
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 300 °C · >300 °C(lit.)
- alpha
- -15.45 · -15.45 º (c=4, 6N HCl)
- Boiling point
- 225.8 · 225.8±23.0 °C(Predicted)
- Density
- 1.293 · 1.2930 (estimate)
- refractive index
- -15 ° · -15 ° (C=4, 6mol/L HCl)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- solubility
- Aqueous Acid (Sparingly), Water (Slightly)
- pka
- 2.55 · 2.55±0.21(Predicted)
- form
- Crystalline Powder, Crystals, or Flakes
- color
- White
- optical activity
- 23 · [α]23/D 14.7°, c = 2 in 5 M HCl
- Water Solubility
- 24 g/L · 24 g/L (25 ºC)
- BRN
- 1721721 · 1721721
- InChI
- 1S/C6H13NO2/c1-4(2)3-5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t5-/m1/s1
- InChIKey
- ROHFNLRQFUQHCH-RXMQYKEDSA-N
- SMILES
- CC(C)C[C@@H](N)C(O)=O
- LogP
- 0.799 · 0.799 (est)
- CAS DataBase Reference
- 328 · 328-38-1(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 965 COD96YA · 965COD96YA
- NIST Chemistry Reference
- D-Leucine(328-38-1)
- EPA Substance Registry System
- D-Leucine (328-38-1)
- UNSPSC Code
- 12352209 · 12352209
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 271 · P271-P280
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 22 · 22-24/25-36-26
- WGK Germany
- 3 · 3
- RTECS
- 2840000 · OH2840000
- TSCA
- TSCA listed
- HS Code
- 29224995 · 29224995
- Storage Class
- 11 · 11 - Combustible Solids
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (6 of 6) of all reports.
Not Classified
Aggregated GHS information provided per 6 reports by companies from 1 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: DL-Leucine
Status: Active Update: 31-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/22295
Safety data
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- OH2840000
- hs_code
- 29224995
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 22-24/25-36-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319-H335
- Precautionary statements
- P271-P280
Chemistry & industry
Applications
UsesD-Leucine is used in the formation of sterols. It is also used as a selectable marker.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers50 total
Additional notes
DefinitionChEBI: The D-enantiomer of leucine.
Related reactions
Linked notes
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