3,4-Dihydroxy-L-phenylalanine CAS NO.59-92-7

Levodopa Chemical Properties
Melting point     276-278 °C (lit.)
alpha     -11.7 º (c=5.3, 1N HCl)
Boiling point     334.28°C (rough estimate)
density     1.3075 (rough estimate)
refractive index     -12 ° (C=5, 1mol/L HCl)
storage temp.     2-8°C
solubility     Slightly soluble in water, practically insoluble in ethanol (96 per cent). It is freely soluble in 1 M hydrochloric acid and sparingly soluble in 0.1 M hydrochloric acid .
pka    2.32(at 25℃)
form     Crystalline Powder
color     White to creamy
Water Solubility     Slightly soluble in water, dilute hydrochloric acid and formic acid. Insoluble in ethanol.
Merck     14,5464
BRN     2215169
Stability:    Stable. Incompatible with strong oxidizing agents. Light and air sensitive.
InChIKey    WTDRDQBEARUVNC-LURJTMIESA-N
CAS DataBase Reference    59-92-7(CAS DataBase Reference)
NIST Chemistry Reference    Levodopa(59-92-7)
EPA Substance Registry System    Levodopa (59-92-7)                

Levodopa Basic information
Product Name:    Levodopa
Synonyms:    2-amino-3-(3,4-dihydroxyphenyl)propanoicacid;3,4-Dihydroxyphenylalanine(form2);3,4-Dihydroxyphenyl-L-alanine;3,4-DIHYDROXY-L-PHENYLALANINE;3,4-L-DIHYDROXYPHENYLALANINE;3-(3,4-DIHYDROXYPHENYL)-L-ALANINE;3-HYDROXY-L-TYROSINE;BETA-(3,4-DIHYDROXYPHENYL)-L-ALANINE
CAS:    59-92-7
MF:    C9H11NO4
MW:    197.19
EINECS:    200-445-2
Mol File:    59-92-7.mol 

Safety Information
Hazard Codes     Xn
Risk Statements     22-36/37/38-20/21/22
Safety Statements     26-36-24/25
WGK Germany     3
RTECS     AY5600000
F     10-23
TSCA     Yes
HS Code     29225090
Hazardous Substances Data    59-92-7(Hazardous Substances Data)
Toxicity    LD50 in mice (mg/kg): 3650 ±327 orally, 1140 ±66 i.p., 450 ±42 i.v., >400 s.c.; in male, female rats (mg/kg): >3000, >3000 orally; 624, 663 i.p.; >1500, >1500 s.c. (Clark)