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L-Valine Structure

L-Valine

Chemical Properties

Melting point 295-300 °C (subl.) (lit.)
Boiling point 213.6±23.0 °C(Predicted)
alpha  28 º (c=8, 6N HCl)
Density  1.23
refractive index  28 ° (C=8, HCl)
storage temp.  2-8°C
solubility  H2O: 25 mg/mL
form  powder
pka 2.29(at 25℃)
color  White
PH 5.5-6.5 (100g/l, H2O, 20℃)
Odor odorless
Odor Type odorless
optical activity [α]20/D +27.0±0.5°, c = 5% in 5 M HCl
Water Solubility  85 g/L (20 ºC)
λmax λ: 260 nm Amax: 0.15
λ: 280 nm Amax: 0.1
Merck  14,9909
BRN  1721136
InChIKey KZSNJWFQEVHDMF-BYPYZUCNSA-N
LogP 0.29
FDA 21 CFR 172.320; 582.5925; 172.320; 310.545
Substances Added to Food (formerly EAFUS) L-VALINE
CAS DataBase Reference 72-18-4(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII HG18B9YRS7
NIST Chemistry Reference Valine(72-18-4)
EPA Substance Registry System L-Valine (72-18-4)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P305+P351+P338
Hazard Codes  Xn
Risk Statements  40
Safety Statements  24/25-36-22
WGK Germany  3
RTECS  YV9361000
TSCA  Yes
HS Code  29224995
Hazardous Substances Data 72-18-4(Hazardous Substances Data)
Toxicity LD50 intraperitoneal in rat: 5390mg/kg
NFPA 704:
0
1 0

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