alpha-Methyldopa sesquihydrate CAS 41372-08-1

Introduction：Basic information about alpha-Methyldopa sesquihydrate CAS 41372-08-1, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

alpha-Methyldopa sesquihydrate Basic information

• Product Name: alpha-Methyldopa sesquihydrate
• Synonyms: (-)-3-(3,4-Dihydroxyphenyl)-2-Methyl-L-alanine sesquihydrate 99%;BPBio1_000365;BSPBio_000331;C07194;IDI1_000142;KBio2_001417;KBio2_003985;KBio2_006553
• CAS: 41372-08-1
• MF: C10H15NO5
• MW: 229.23
• EINECS: 609-918-1
• Product Categories: Pharmaceutical intermediates;Amino Acids & Derivatives;Chiral Reagents;Intermediates & Fine Chemicals;Neurochemicals;Pharmaceuticals;L-Aromatic Amino Acid Decarboxylase
• Mol File: 41372-08-1.mol

alpha-Methyldopa sesquihydrate Chemical Properties

• Melting point: >300 °C(lit.)
• storage temp.: 2-8°C
• solubility: Slightly soluble in water, very slightly soluble in ethanol (96 per cent). It is freely soluble in dilute mineral acids.
• form: Solid
• color: White to Off-White
• Optical Rotation: [α]25/D 13°, c = 1 in H2O
• Water Solubility: 0.1-1 g/100 mL at 23 ºC
• Sensitive: Air & Light Sensitive
• Merck: 13,6080
• BRN: 2417244
• Stability: Stable, but may be light sensitive. Very hygroscopic. Undergoes catalytic oxygenation in the presence of magnesium, cupric, cobalt, nickel and ferric ions. Store under a dry atmosphere.
• Major Application: peptide synthesis
• InChI: InChI=1/C10H13NO4.H2O/c1-10(11,9(14)15)5-6-2-3-7(12)8(13)4-6;/h2-4,12-13H,5,11H2,1H3,(H,14,15);1H2/t10-;/s3
• InChIKey: XDJUBZFLFDODNF-MEQOOBBNNA-N
• SMILES: [C@@](N)(C)(CC1C=CC(O)=C(O)C=1)C(=O)O.O |&1:0,r|
• CAS DataBase Reference: 41372-08-1(CAS DataBase Reference)

Safety Information

• Risk Statements: 20/21-36/37/38-42/43-65
• Safety Statements: 24/25
• WGK Germany: 3
• RTECS: YP2860000
• F: 10-23
• HS Code: 2922504500
• Storage Class: 11 - Combustible Solids

alpha-Methyldopa sesquihydrate Usage And Synthesis

Chemical Properties

White Solid

Uses

Potent inhibitor of invertase and glucosidase inhibitor with a different specificity of action to DNJ and castanospermine. Inhibits glucosidase I.

Uses

Antihypertensive agent.

reaction suitability

reaction type: solution phase peptide synthesis

Biological Activity

l-(-)-α-methyldopa (hydrate) is an alpha-adrenergic agonist (selective for α2-adrenergic receptors) psychoactive drug used as a sympatholytic or antihypertensive.

Purification Methods

Recrystallise methyldopa from H2O. [Reinhold et al. J Org Chem 33 1209 1968.] The L-isomer forms a sesquihydrate from H2O m 302-304o (dec), and the anhydrous crystals are hygroscopic,[] 23D -4.0o (c 1, 0.1N HCl), []546 +154.5o (c 5, CuSO4 solution). It has max at 281nm ( 2780). Its solubility in H2O at 25o is ~10mg/mL and the pH of an aqueous solution is ~5.0. It is insoluble in most organic solvents. [Stein et al. J Am Chem Soc 77 700 1955, Beilstein 4 IV 2505.]