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Home> CAS DataBase Listed 5 > CAS 555-30-6
Identification of 555-30-6
  • Name:
  • L-Tyrosine, 3-hydroxy-a-methyl- (Related Reference)
  • EINECS:
  • 209-089-2
  • Synonyms:
  • Alanine,3-(3,4-dihydroxyphenyl)-2-methyl-, L- (8CI); (-)-Methyldopa; (S)-(-)-a-Methyldopa; 2-Methyl-3-(3,4-dihydroxyphenyl)alanine; Aldometil; Alphamethyldopa; Baypresol; Dopatec; Equibar; L-(-)-a-Methyl-b-(3,4-dihydroxyphenyl)alanine; L-3,4-Dihydroxy-a-methylphenylalanine; Levo-3-(3,4-Dihydroxyphenyl)-2-methylalanine; Medomet; Medopa; Methoplain; Methyldopa; NSC 169916; Presinol; Presolisin;
  • InChI:
  • InChI=1/C10H13NO4/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)/t10-/m0/s1
  • This structure is also available as a 2d Mol file
Safety Data of 555-30-6 Properties of 555-30-6
  • Appearance:
  • Colorless or almost colorless crystals or white to yellowish-white fine powder. Almost tasteless. In the sesquihydrate form.
  • Molecular Weight:
  • 211.22
  • Density:
  • 1.403g/cm3
  • Boiling Point:
  • 441.6°Cat760mmHg
  • Melting Point:
  • 300℃
  • Flash Point:
  • 220.9°C
  • Storage Temperature:
  • Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
  • Refractive index:
  • -14 ° (C=1, H2O)
  • Solubility:
  • 10 g/L
  • Biological Activity:
  • L-aromatic amino acid decarboxylase inhibitor. Antihypertensive.
  • Stability:
  • Stable under normal temperatures and pressures.
  • Usage:
  • Antihypertensive agent.
  • More>>

CAS No. 555-30-6 (L-Tyrosine, 3-hydroxy-a-methyl- )

  • CAS No:555-30-6
  • Molecular Weight: 211.22
  • Molecular Formula: C10H13NO4
Properties Safety and Handling MSDS Synthesis Route Precursor and Product
L-Tyrosine, 3-hydroxy-a-methyl- CAS 555-30-6
  • FOB Price:1 USD/Gram 
  • Cas No:555-30-6 
  • Min.Order:1/Gram 
  • Purity:99% 
  • Supply Ability:100 Day/Kilogram 
  • Payment: 
  • Updatetime:Jul 20 2018 
Hubei XinRunde Chemical Co., Ltd 2YRS Main Products
Pharmaceutical Intermediate; Pharmaceutical Raw Materials; Raw Steroid Powders; Raw Hormone Powders; etc
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3-(3,4-Dihydroxyphenyl)-2-methyl-L-alanine
  • FOB Price:3 USD/Kilogram 
  • Cas No:555-30-6 
  • Min.Order:1/Kilogram 
  • Purity:95%, 99% 
  • Supply Ability:131 Year/Metric Ton 
  • Payment:T/T, L/C 
  • Updatetime:Jul 20 2018 
Methyldopa
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order:1/5/25/Kilogram 
  • Purity:99% 
  • Supply Ability:  
  • Payment:T/T,Western Union,T/T,L/C,D/P, 
  • Updatetime:Jul 20 2018 
L-Tyrosine, 3-hydroxy-a-methyl-
  • FOB Price:100 USD/Kilogram 
  • Cas No:555-30-6 
  • Min.Order:1/Kilogram 
  • Purity:99% 
  • Supply Ability:100 Month/Kilogram 
  • Payment:T/T 
  • Updatetime:Mar 13 2018 
Jinlan Pharm-Drugs Technology Co., Limited 6YRS Main Products
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Medoba
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order: 
  • Purity:99%min 
  • Supply Ability:  
  • Payment: 
  • Updatetime:Dec 16 2016 
Hangzhou J&H Chemical Co., Ltd 4YRS Main Products
3,5-Dibromoanisole,5-Fluoro-2-nitroanisole,Doxorubicin hydrochloride,Diethyl 4-oxoheptanedioate,1,5-Diphenylpenta-1,4-dien-3-one,3,5-Dimethoxy-4-hydroxycinnamic acid
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alpha-methyldopa
  • FOB Price:0 USD/Gram 
  • Cas No:555-30-6 
  • Min.Order:1/Gram 
  • Purity:98 
  • Supply Ability:1 Month/Kilogram 
  • Payment:T/T or L/C or Western Union 
  • Updatetime:Jul 05 2018 
Shanghai Forever Synthesis Co.,Ltd. Main Products
Shanghai Forever Synthesis Co.,Ltd. is a professional chemical supplier for API, intermediates, fine chemicals, and customized synthesis.
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Methyldopa
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order: 
  • Supply Ability:  
  • Payment: 
  • Appearance: 
  • Updatetime:Jun 07 2018 
AOPHARM Main Products
Pharmaceutical Intermediate, API, Botanical Extract
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Strong 99% Methyldopa 555-30-6
  • FOB Price:1 USD/Gram 
  • Cas No:555-30-6 
  • Min.Order:10/Gram 
  • Purity:99% 
  • Supply Ability:3 Month/Metric Ton 
  • Payment:T/T,Western Union,MoneyGram,Bitcoin, 
  • Updatetime:Feb 24 2018 
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Alpha-methyldopa
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order:10/Kilogram 
  • Purity:99% 
  • Supply Ability:100 Year/Metric Ton 
  • Payment:L/C,T/T,Western Union, 
  • Updatetime:Feb 06 2018 
MOSINTER GROUP LIMITED Main Products
Additives for Gasoline and diesel, Pharmaceutical Products, Fire retardant products
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Methyldopa
  • FOB Price:750 USD/Kilogram 
  • Cas No:555-30-6 
  • Min.Order:1/Kilogram 
  • Purity:99% 
  • Supply Ability:1000 Quarter/Kilogram 
  • Payment:L/C,T/T,Western Union, 
  • Updatetime:Jun 14 2017 
Jinan Jianfeng Chemical Co., Ltd Main Products
pharmaceutical chemicals and intermediates. including Anticancer,Antifungal,Anesthesia,,such as Bortezomib, apixaban, lidocaine, nifuratel, pregablin, Propofol,Sorafenib tosylate,
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L-Methyldopa
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order: 
  • Supply Ability:  
  • Payment:L/C,D/A,D/P,T/T,Western Union,MoneyGran, 
  • Appearance: 
  • Updatetime:Feb 04 2017 
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food additives ,flavor and fragrance,Pharmaceutical intermediates.steroid.special for anbolic steroid hormone powder Muscle Building Steroids,Oral Anabolic Steroids,Injectable Anabolic Steroids
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2-AMINO-3-(3,4-DIHYDROXYPHENYL)-2-METHYL-PROPANOIC ACID
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order:1,5,25/Gram 
  • Purity:95%min 
  • Supply Ability:kilograms Day/kilograms 
  • Payment:negotiation 
  • Updatetime:Dec 15 2016 
Struchem Co Ltd Main Products
all kinds of fine chemicals, APIs, Bio-chemicals, from grams to kilograms, and larger scale. both with compounds in stock and custom synthesis.
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alpha-methyldopa CAS:555-30-6
  • FOB Price:1 USD/Kilogram 
  • Cas No:555-30-6 
  • Min.Order:1/Kilogram 
  • Purity:99% 
  • Supply Ability:600 Month/Kilogram 
  • Payment:T/T,Western Union,MoneyGram, 
  • Updatetime:Sep 29 2016 
Wuhan Dahua Weiye Pharmaceutical Co.,Ltd Main Products
Pharmaceutical, pharmaceutical intermediat,hormone powders
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(S)-(-)-ALPHA-METHYLDOPANOBR
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order:1/Kilogram 
  • Purity:99 
  • Supply Ability:100 Year/Metric Ton 
  • Payment:T/T,LC,DP,DA 
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Jinan Haohua Industry Co., Ltd. Main Products
Chlorodimethylsilane;1,1,3,3-tetramethyldisiloxane
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(S)-2-Amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoicacid
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order: 
  • Purity:95+% 
  • Supply Ability:g/kg  
  • Payment:5071%T/T in advance 
  • Updatetime:Jul 20 2016 
Atomax Chemicals Co.,Ltd Main Products
3-Fluoro-isonicotinic acid,Osmium tetroxide,Mafenide Hcl,3-Bromopentane,2-Phenylacetoacetonitrile,OSMIUM
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Methyldopa
  • FOB Price:10 USD/Kilogram 
  • Cas No:555-30-6 
  • Min.Order:10/Gram 
  • Purity:99% 
  • Supply Ability:20 Month/Metric Ton 
  • Payment:T/T,L/C,Western union,Moneygram 
  • Updatetime:Jul 12 2016 
Wuhan Senwayer Century chemical Co.,Ltd Main Products
API,intermediate, Agrochemical,Amino Acids
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L-Methyl Dopa 555-30-6
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order:1/Gram 
  • Supply Ability:10 Month/Metric Ton 
  • Payment:TT ,LC, Western Union 
  • Appearance: 
  • Updatetime:Dec 10 2015 
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Pharmaceutical raw material(API), Pharmaceutical Intermediate, optical brightening Agent (Fluorescent Brightener), dyes, pigments
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alpha-methyldopa
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order: 
  • Supply Ability:  
  • Payment: 
  • Appearance: 
  • Updatetime:Dec 20 2016 
Methyldopa
  • FOB Price:  
  • Cas No:555-30-6 
  • Min.Order: 
  • Purity:99.5% 
  • Supply Ability:  
  • Payment: 
  • Updatetime:Oct 28 2016 
Fujian san tai Bio-Pharm co.,LTD Main Products
2-(4-Bromomethyl)phenylpropionic acid (cas No.1111128-12-2),4-Bromomethly-2-quinolinone(cas No.4876-10-2),2-Amino-5-Nitrothiazole(cas No.121-66-4),2-(Diphenylphosphino)benzoic acid(cas No.17261-28-8)
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Methyldopa
  • FOB Price:500 RMB/Kilogram 
  • Cas No:555-30-6 
  • Min.Order:50/Gram 
  • Purity:98 
  • Supply Ability:1500 Month/Kilogram 
  • Payment:L/C,T/T, 
  • Updatetime:Dec 29 2015 
Jinan Jianfeng Chemical Co., Ltd Main Products
Pharm API and Intermediates.Antifungal, Osteoporosis, Anticancer, Anesthesia, and other pharmaceutical intermediates, such as, Dexamethasone , Epalrestat
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Precursor and Product
product :
References of L-Tyrosine, 3-hydroxy-a-methyl- cas 555-30-6

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
man TDLo oral 1071mg/kg/22W (1071mg/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, ALLERGIC: AFTER SYSTEMIC EXPOSURE" CUTIS; Cutaneous Medicine for the Practitioner. Vol. 38, Pg. 187, 1986.
mouse LD50 intraperitoneal 150mg/kg (150mg/kg) CARDIAC: PULSE RATE INCREASE WITHOUT FALL IN BP

VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION
Journal of Medicinal Chemistry. Vol. 20, Pg. 1378, 1977.
mouse LD50 intravenous 1700mg/kg (1700mg/kg) ? Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 56, Pg. 1103, 1960.
mouse LD50 oral 5300mg/kg (5300mg/kg) ? Drugs in Japan Vol. -, Pg. 1178, 1990.
rabbit LD50 intravenous 713mg/kg (713mg/kg) ? "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972Vol. -, Pg. 348, 1972.
rabbit LD50 oral 713mg/kg (713mg/kg) ? "Drug Dosages in Laboratory Animals - A Handbook," Rev. ed., Barnes, C.D., and L.G. Eltherington, Berkeley, Univ. of California Press, 1973Vol. -, Pg. 162, 1973.
rat LD50 intraperitoneal 300mg/kg (300mg/kg) ? "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972Vol. -, Pg. 348, 1972.
rat LD50 oral 5gm/kg (5000mg/kg) ? "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972Vol. -, Pg. 348, 1972.
women TDLo oral 900mg/kg/13W- (900mg/kg) BEHAVIORAL: TREMOR Neurology. Vol. 35, Pg. 1668, 1985.
women TDLo oral 1830mg/kg/17W (1830mg/kg) PERIPHERAL NERVE AND SENSATION: FASCICULATIONS

BEHAVIORAL: "HALLUCINATIONS, DISTORTED PERCEPTIONS"

BEHAVIORAL: TREMOR
South African Medical Journal. Vol. 65, Pg. 194, 1984.
women TDLo oral 44gm/kg/3Y-I (44000mg/kg) GASTROINTESTINAL: NECROTIC GHANGES American Heart Journal. Vol. 105, Pg. 1037, 1983.

Safety

WGK: Germany 3
RTECS :YP2860000
F :10-23

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