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L-Leucine#61-90-5

L-Leucine#61-90-5
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Chemical Name： L-Leucine
CAS No.:61-90-5
Molecular Formula：C6H13NO2
Sample: Available
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L-Leucine#61-90-5

L-leucine is one of the eight essential amino acids, and belonging to the aliphatic amino acids within twenty kinds of proteins. L-leucine and L-isoleucine and L-valine are called three branched chain amino acids. L-leucineLeucine and D-leucine are enantiomers . It is a white shiny hexahedral crystal or white crystalline powder at room temperature , Odorless, slightly bitter .

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)
bulk density	300-400kg/m3
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.	2-8°C
solubility	1 M HCl: 50 mg/mL
form	powder
pka	2.328(at 25℃)
color	White to Off-white
Odor	at 100.00?%. odorless
PH	5.5-6.5 (20g/l, H2O, 20℃)
biological source	plant
Optical Rotation	[α]20/D +15.5°, c = 2 in 6 M HCl
Water Solubility	22.4 g/L (20 C)
λmax	λ: 260 nm Amax: 0.05λ: 280 nm Amax: 0.05
JECFA Number	1423
Sublimation	145-148 ºC
Merck	14,5451
BRN	1721722
Stability:	Stability Moisture and light sensitive. Incompatible with strong oxidising agents.
LogP	0.80
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)

Safety Information

Safety Statements	24/25
WGK Germany	3
RTECS	OH2850000
TSCA	Yes
HS Code	29224995
Hazardous Substances Data	61-90-5(Hazardous Substances Data)

Product Usage

Small, white, lustrous plates, or a white, crystalline powder, with a slightly bitter taste. One g dissolves in about 40 mL of water and in about 100 mL of acetic acid. It is sparingly soluble in alcohol, but is soluble in dilute hydrochloric acid and in solutions of alkali hydroxides and carbonates.

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