L-Tyrosine, 3-hydroxy-a-methyl-

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1 Kilogram	Negotiable

1 Kilogram

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L-Tyrosine, 3-hydroxy-a-methyl-? price L-Tyrosine, 3-hydroxy-a-methyl-? CAS 555-30-6 L-Tyrosine, 3-hydroxy-a-methyl-? supplier in China

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Methyldopa Chemical Properties

mp	≥300 °C
refractive index	-14 ° (C=1, H2O)
storage temp.	Store at RT
Merck	6055
CAS DataBase Reference	555-30-6(CAS DataBase Reference)
EPA Substance Registry System	L-Tyrosine, 3-hydroxy-.alpha.-methyl-(555-30-6)

Safety Information

MSDS Information

Provider	Language
2-Amino-3-(3,4-dihydroxyphenyl)-2-methyl-propanoic acid	English
SigmaAldrich	English

Methyldopa Usage And Synthesis

Usage	Antihypertensor;L-aromatic aminoacid decarboxylase inhibitor
Usage	vitamin, coenzyme B12
General Description	Colorless or almost colorless crystals or white to yellowish-white fine powder. Almost tasteless. In the sesquihydrate form. pH (saturated aqueous solution) about 5.0.
Air & Water Reactions	Very hygroscopic. Slightly water soluble. May be sensitive to prolonged exposure to air and light. The stability of aqueous solutions is markedly dependent on pH, oxygen and the amount of initial reactant. Aqueous solutions are stable for up to 50 hours in acid and neutral pH (6.2). At pH 8.0, decomposition products are formed in 3 to 5 hours. Solutions develop a red tint that becomes progressively darker (eventually forming a black precipitate).
Reactivity Profile	Methyldopa undergoes catalytic oxygenation in the presence of magnesium, cupric, cobalt, nickel and ferric ions . A weakly acidic amino acid.
Fire Hazard	Flash point data for Methyldopa are not available; however, Methyldopa is probably combustible.
Biological Activity	L-aromatic amino acid decarboxylase inhibitor. Antihypertensive.