L-Leucine 61-90-5 98%
L-Leucine Chemical Properties
Melting point >300 °C (lit.)
alpha 15.4 º (c=4, 6N HCl)
Boiling point 122-134 °C(Press: 2-3 Torr)
density 1,293 g/cm3
vapor pressure <1 hPa (20 °C)
refractive index 1.4630 (estimate)
FEMA 3297 | L-LEUCINE
Fp 145-148°C
storage temp. Store at RT.
solubility 1 M HCl: 50 mg/mL
pka 2.328(at 25℃)
form powder
color White to Off-white
PH 5.5-6.5 (20g/l, H2O, 20℃)
optical activity [α]20/D +15.5°, c = 2 in 6 M HCl
Water Solubility 22.4 g/L (20 C)
λmax λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05
Sublimation 145-148 ºC
JECFA Number 1423
Merck 14,5451
BRN 1721722
Stability: Stability Moisture and light sensitive. Incompatible with strong oxidising agents.
CAS DataBase Reference 61-90-5(CAS DataBase Reference)
NIST Chemistry Reference Leucine(61-90-5)
EPA Substance Registry System L-Leucine (61-90-5)
L-Leucine Basic information
description Chemical Properties Uses toxicity
Product Name: L-Leucine
Synonyms: (s)-2-amino-4-methylvalericacid;1-Leucine;2-Amino-4-methylpentanoic acid;2-amino-4-methylpentanoicacid;2-amino-4-methyl-valericaci;4-methyl-l-norvalin;4-methyl-norvalin;alpha-Amino-gamma-methylvaleric acid
CAS: 61-90-5
MF: C6H13NO2
MW: 131.17
EINECS: 200-522-0
Mol File: 61-90-5.mol
Safety Information
Safety Statements 24/25
WGK Germany 3
RTECS OH2850000
TSCA Yes
HS Code 29224995
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