DL-DOPA Chemical Properties

Melting point:

270-272 °C(lit.)

Boiling point:

334.28°C (rough estimate)

Density 

1.3075 (rough estimate)

refractive index 

1.5270 (estimate)

storage temp. 

Store at -20°C

solubility 

Water:62.5(Max Conc. mg/mL);316.95(Max Conc. mM)

form 

Powder

pka

2.24±0.20(Predicted)

color 

Off-white

Odor

Odorless

Water Solubility 

Soluble in water, 0.5M dilute hydrochloric acid and formic acid. Insoluble in ethanol, benzene, chloroform and ethyl acetate.

Merck 

14,3420

BRN 

3204800

CAS DataBase Reference

63-84-3(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

RTECS 

AY5250000

HS Code 

2922500090

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

DL-DOPA Usage And Synthesis

Uses

3,4-Dihydroxy-DL-phenylalanine is used as a dopamine precursor. It is also useful in organic synthesis.

Definition

ChEBI: A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring.

Synthesis Reference(s)

Journal of the American Chemical Society, 70, p. 693, 1948 DOI: 10.1021/ja01182a079

Biochem/physiol Actions

3,4-dihydroxyphenylalanine is an immediate precursor of dopamine, which is a product of tyrosine hydroxylase.

DL-DOPA(63-84-3)Related Product Information

• alpha-Methyldopa sesquihydrate
• (2RS,3RS)-2-AMINO-3-(3,4-DIHYDROXY-PHENYL)-3-HYDROXY-PROPIONIC ACID
• BETANIN
• Levodopa
• Dimethyl methyldopa
• S-(-)-Carbidopa
• (2S)-2-Amino-3-(3,4-dimethoxyphenyl)-2-methyl-propanoic acid
• D-DOPA
• DL-DOPA
• alpha-Methyl DL-DOPA
• Methyldopa
• DL-DOPA FOR BIOCHEMISTRY 99%
• BOC-PHE(3,4-DIHYDROXY)-OH DCHA
• 3-METHOXY-DL-TYROSINE
• 2,4,5-TRIHYDROXY-DL-PHENYLALANINE
• L-3,4-DIHYDROXYPHENYLALANINE METHYL ESTER HYDROCHLORIDE
• (S)-2-AMINO-3-(3,4-DIMETHOXY-PHENYL)-PROPIONIC ACID
• 3-METHOXY-L-TYROSINE