Factory Price Pharmaceutical Chemical Purity Degree 99% CAS No. 59-92-7 Pharmaceutical Intermediates L-4, 5-Dihydroxyphenylalanine Levodopa

• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Industrial
• Model NO.: Dongfang
• Colour: White
• Formula: C9h11no4
• CAS No.: 59-92-7
• Einecs: 200-445-2
• Usage: Pharm
• Transport Package: 25kg/Drum
• Specification: 200g
• Trademark: Dongfang
• Origin: China
• HS Code: 2932999099
• Production Capacity: 1000 Ton/Tons Per Month

Product Description

   Levodopa is a naturally occurring dietary supplement and psychoactive drug found in certain kinds of herbs. The most common plant source of Levodopa marketed in this manner is Stizolobium cochinchin ensis (Lour) and Mucuna Pruriens. 
   Some animals including humans make it via biosynthesis from the amino acid L-tyrosine. L-DOPA is synthesized from the amino acid L-tyrosine in the mammalian body and brain, it is the precursor to the neurotransmitters dopamine, norepinephrine, and epinephrine collectively known as catecholamines.
    L-DOPA can be manufactured and in its pure form is sold as a psychoactive drug with the INN levodopa. Aside from its natural and essential biological role,
L-DOPA is also used in the clinical treatment of Parkinson's disease and dopamine-responsive dystonia. It is a prescription drug in the US.

1 .L-Dopa is anti-paralysis agitans. 
2. L-Dopa can be used for essential tremor and paralysis paralysis agitans syndrome of non-drug immunogenicity, and in better light, severe, or the elderly poor.
3. L-Dopa can promote muscle growth,loss weight.
4. L-Dopa can increase bone density and reversal of osteoporosis.
5 .L-Dopa can treat parkinsonism and Pakinsonism syndrome
6. L-Dopa can promote sleep,improve immune system.
 

 

Items	Specifications	Result
Character	White or almost white, crystalline powder	White crystalline powder
Identification	Infrared absorption	Infrared absorption
Solubility	Slightly soluble in water, practically soluble in ethanol(96%), freely soluble in 1M hydrochloric aci/d and sparingly soluble in 0.1M Hydrochloric aci/d.	Conform
PH	4.5~7.0	5.78
Appearance of solution	Complies	Complies
Related substances Impurity A Impurity B Impurity C Unspecified impurity Total impurities Impurity D	≤0.1% ≤0.5% ≤0.2% ≤0.05% ≤1.0% ≤0.5%	Not detected 0.19% 0.01% 0.04% 0.38% Not detected
Loss on drying	≤1.0%	0.12%
Sulphated ash	≤0.1%	0.03%
Assay(dry basis C9H11NO4)	99.0%~101.0%	99.62%
Conclusion	The above merchandise matches the EP9.0 standard.

 
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2.Ensure the quality and storage safety of each batch of products.
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