High quality/High cost performance Velvet Bean Extract Levodopa 98% L-Dopa Powder CAS 59-92-7

Min.Order: 25

Product origin: Hefei, Anhui, China

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Complaint

US$ 100 ~ 150

Description

Velvet Bean Extract Levodopa 98% L-DOPA powder CAS 59-92-7

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

Application

1. Levodopa can be applied in health supplement.
2. Levodopa can be applied in functional food additive.
3. Levodopa can be applied in cosmetics and personal care products.
4.Levodopa can be applied in hair coloring .

Specification

Appearance	White to off-white powder
Identification	IR
	The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in assay
Optical rotation	-160°~-167°
Loss on drying	≤0.5%
Residue on ignition	≤0.1%
Heavy metals(Pb)	≤20ppm
Organic impurities	Levodopa related compound A^a≤0.1%
	L-Tyrosine≤0.1%
	Levodopa related compound B≤0.5%
	L-Veratrylglycine^b≤0.1%
	Any unspecified impurity ≤0.1%
	Total impurities≤1.1%
Assay	98.0%~102.0%(on dried basis)