Parkinson′s Disease Levodopa L-Dopa 99% Purity Powder

High Purity and China Supply Chemical Levodopa,L-Dopa (CAS: 59-92-7)

High purity Levodopa (CAS: 59-92-7)
Name: Levodopa
BETA-(3, 4-DIHYDROXYPHENYL)-L-ALANINE; HYDROXYTYROSINE; H-PHE(3, 4-DI-HYDROXY)-OH; H-PHE(3, 4-DI-OH)-OH; H-TYR(3-HYDROXY)-OH; L-BETA-(3, 4-DIHYDROXYPHENYL)ALANINE; L-DOPA; L-DOPA, L-3-HYDROXYTYROSINE
CAS: 59-92-7
MF: C9H11NO4
MW: 197.19
EINECS: 200-445-2
Melting point: 276-278 ° C(lit. )
Specific rotation: -11.7 o (c=5.3, 1N HCl)
Refractive index: -12 ° (C=5, 1mol/L HCl)
Merck 14, 5464
BRN 2215169
Stability: Stable. Incompatible with strong oxidizing agents. Light and air sensitive.
Category: Pharmaceutical; Amino acids and derivatives; Amino Acids; Biochemistry; Biological-modified Amino Acids; Nutritional Supplements; Natural Plant Extract; Amino Acids & Derivatives; Chiral Reagents; Intermediates & Fine Chemicals; Neurochemicals; Pharmaceuticals; Dopamine receptor; Plant extract; Plant extracts; Herb extract; Chemical reagent; Pharmaceutical intermediate; Phytochemical; Reference standards from Chinese medicinal herbs (TCM).; Standardized herbal extract; LARADOPA
High purity Levodopa (CAS: 59-92-7)

TESTSTANDARDRESULTSContent99.00%~101.00%99.78%CharactersAwhiteoralmostwhite,crystallinepowderWhitecrystallinepowderSolubilitySlightlysolubleinwater,practicallyinsolubleinethanol(96%),freelysolublein1Mhydrochloricacidandsparinglysolublein0.1Mhyd-rochloricacidMeetstherequirementsIdentificationInfraredabsorptionMeetstherequirementsAppearanceofsolutionNotmoreintenselycoloredthanreferencesolutionBY6MeetstherequirementsAcidityofalkalinityPH:4.50~7.005.61AImpurityA≤0.100%0.015%L-L-tyrosine≤0.500%0.158%3--L-
3-methoxy-L-tyrosine≤0.200%0.012%D-D-dopa≤0.500%0.038%Unspecifiedimpurities≤0.050%individualMeetstherequirementsTotalimpurities≤1.000%0.306%Heavymetals≤10ppm6ppmLossondrying≤1.00%0.51%Sulphatedash≤0.10%0.04%StorageStoreprotectedfromlight