DL-DOPA

Synonym(s):DL-3-Hydroxytyrosine;DL-DOPA;3-(3,4-Dihydroxyphenyl)-DL-alanine

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

3,4-Dihydroxy-DL-phenylalanine is an immediate dopamine precursor

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

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

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

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)
pka	2.24±0.20(Predicted)
form	Powder
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)

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.