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Methyldopa

Methyldopa Suppliers list
Company Name:Shanghai Boyle Chemical Co., Ltd.  
Tel:Mr Qiu:021-50182298(Demestic market) Miss Xu：021-50180596（Abroad market）
Email:sales@boylechem.com
Products Intro: Product Name:Methyldopa
CAS:555-30-6
Company Name:J & K SCIENTIFIC LTD.  
Tel:400-666-7788 +86-10-82848833
Email:jkinfo@jkchemical.com;market3@jkchemical.com
Products Intro: Product Name:3-(3,4-Dihydroxyphenyl)-2-Methyl-L-alanine Sesquihydrate
CAS:555-30-6
Purity:98.0%(LC&T) Package:25G,5G
Company Name:Meryer (Shanghai) Chemical Technology Co., Ltd.  
Tel:+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing)
Email:sh@meryer.com
Products Intro: Product Name:3-(3,4-Dihydroxyphenyl)-2-Methyl-L-alanine Sesquihydrate
CAS:555-30-6
Purity:98% Package:5g;25g Remarks:D1817
Company Name:3B Pharmachem (Wuhan) International Co.,Ltd.  
Tel:86-21-50328103 * 801、802、803、804 Mobile:18930552037
Email:67055399@qq.com
Products Intro: Product Name:L-(-)-α-Methyldopa;3-(3,4-Dihydroxyphenyl)-α-Methyl-L-alanine
CAS:555-30-6
Purity:99% HPLC Package:1Mg ; 5Mg;10Mg ;100Mg;250Mg ;500Mg ;1g;2.5g ;5g ;10g
Company Name:TCI (Shanghai) Development Co., Ltd.  
Tel:800-988-0390
Email:info@chemicalbook.com
Products Intro: Product Name:3-(3,4-Dihydroxyphenyl)-2-Methyl-L-alanine Sesquihydrate
CAS:555-30-6
Purity:98.0%(LC&T) Package:5G;25G
Methyldopa Basic information
Product Name:Methyldopa
Synonyms:MK-351;L-(-)-ALPHA-METHYLDOPA;L-ALPHA-METHYL-DOPA;L-3-(3,4-DIHYDROXYPHENYL)-2-METHYLALANINE;MEDOBA;L-METHYLDOPA;METHYL DOPA;METHYL-L-DOPA
CAS:555-30-6
MF:C10H13NO4
MW:211.21
EINECS:209-089-2
Product Categories:API's;Aldomet;RUBRAMIN
Mol File:555-30-6.mol
Methyldopa Structure
Methyldopa Chemical Properties
mp ≥300 °C
refractive index -14 ° (C=1, H2O)
storage temp. Store at RT
Merck 6055
CAS DataBase Reference555-30-6(CAS DataBase Reference)
EPA Substance Registry SystemL-Tyrosine, 3-hydroxy-.alpha.-methyl-(555-30-6)
Safety Information
WGK Germany 3
RTECS YP2860000
F 10-23
Hazardous Substances Data555-30-6(Hazardous Substances Data)
MSDS Information
Methyldopa Usage And Synthesis
UsageAntihypertensor;L-aromatic aminoacid decarboxylase inhibitor
Usagevitamin, coenzyme B12
General DescriptionColorless 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 ReactionsVery 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 ProfileMethyldopa undergoes catalytic oxygenation in the presence of magnesium, cupric, cobalt, nickel and ferric ions . A weakly acidic amino acid.
Fire HazardFlash point data for Methyldopa are not available; however, Methyldopa is probably combustible.
Biological ActivityL-aromatic amino acid decarboxylase inhibitor. Antihypertensive.
Methyldopa Preparation Products And Raw materials
Raw materialsDimethyl sulfate-->Vanillin-->Anisole-->Nitroethane-->Veratraldehyde-->3,4-Dimethoxyphenylacetone-->3-Hydroxy-alpha-methyl-DL-tyrosine
Tag:Methyldopa(555-30-6) Related Product Information
Hydantoic acid Sinemet LABOTEST-BB LT00847269 Dimethyl methyldopa S-(-)-Carbidopa (-)-3-(3,4-DIHYDROXYPHENYL)-2-METHYL-L-ALANINE SESQUIHYDRATE,3-(3,4-DIHYDROXYPHENYL)-2-METHYL-L-ALANINE SESQUIHYDRATE,L-(-)-ALPHA-METHYLDOPA ((-)-3-(3,4-DIHYDROXYPHENYL)-2-METHYL-L-ALANINE SESQUIHYDRATE),3-(3,4-Dihydroxyphenyl)-2-methyl-L-alanine, Methyl-L-DOPA, MK-351 FMOC-L-METHYLDOPA METHYL THIOPHENE-2-CARBOXYLATE beta-Alanine Methyl Trometamol Methyl acrylate Bensulfuron methyl Methylparaben Methyldopa Parathion-methyl Thiophanate-methyl 3-(4-Hydroxyphenyl)propionic acid