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L-Isoleucine Structure

L-Isoleucine

Chemical Properties

Melting point 288 °C (dec.) (lit.)
alpha  41 º (c=4, 6N HCl)
Boiling point 225.8±23.0 °C(Predicted)
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
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
JECFA Number 2118
Merck  14,5179
Sublimation  168-170 ºC
BRN  1721792
InChIKey AGPKZVBTJJNPAG-WHFBIAKZSA-N
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

Hazard Codes  Xn
Risk Statements  40
Safety Statements  24/25-36-22
WGK Germany  3
RTECS  NR4705000
TSCA  Yes
HS Code  29224995
Hazardous Substances Data 73-32-5(Hazardous Substances Data)
Toxicity LD50 intraperitoneal in rat: 6822mg/kg

MSDS

Usage And Synthesis

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