 Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > DOPA for Sale > China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM buy - large image1

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM buy - image1

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM buy - image2

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM buy - image3

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM buy - image4

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM

Name: China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM
Brand: HuaMan
SKU: pr2412271260
Price: 0.9 USD
Availability: InStock

TDS 7 Inquiries

Unit Price: Get Latest Price 

CAS No.:

59-92-7

Grade:

Industrial Grade

Content:

99%

Port:

tianjin

Brand:

HuaMan

Packaging:

10 bottles/box

Sample Available:

Yes

Price valid (until):

2025-01-27

Contact Supplier

 Chat Now

Nanjing Huaman Import and Exp

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment

Average Lead Time:

5 days

Qualification:

Main Products:

Propylene glycol

 Visit Store

Product Description
Seller Information
Inquiry History

Description

Product Detail

whatsapp:+852 9431 6380

Levodopa Chemical Properties

Melting point	276-278 °C (lit.)
alpha	-11.7 º (c=5.3, 1N HCl)
Boiling point	334.28°C (rough estimate)
density	1.3075 (rough estimate)
refractive index	-12 ° (C=5, 1mol/L HCl)
storage temp.	2-8°C
solubility	Slightly soluble in water, practically insoluble in ethanol (96 per cent). It is freely soluble in 1 M hydrochloric acid and sparingly soluble in 0.1 M hydrochloric acid .
pka	2.32(at 25℃)
form	Crystalline Powder
color	White to creamy
Odor	at 100.00 %. odorless
Odor Type	odorless
Water Solubility	Slightly soluble in water, dilute hydrochloric acid and formic acid. Insoluble in ethanol.
Merck	14,5464
BRN	2215169
Stability:	Stable. Incompatible with strong oxidizing agents. Light and air sensitive.
InChIKey	WTDRDQBEARUVNC-LURJTMIESA-N
LogP	-1.154 (est)
CAS DataBase Reference	59-92-7(CAS DataBase Reference)
NIST Chemistry Reference	Levodopa(59-92-7)
EPA Substance Registry System	Levodopa (59-92-7)

Shop Factory supply low price Thymosin Beta-4 TB-500 5mg 10mg CAS 885340-08-9 HuaMan-Detailed Image 1

Shop Ketone Ester Light yellow to colorless transparent liquid none cas 1208313-97-6 HuaMan-Detailed Image 1

Shop Fast shipping, safe delivery, high quality weight loss Peptide Tirzepatide 2023788-19-2 30mg HM-Detailed Image 1

Shop Fast shipping, safe delivery, high quality weight loss Peptide Tirzepatide 2023788-19-2 30mg HM-Detailed Image 2

Items	Specifications
Product Name	Tirzepatide
Other Name	LY3298176
CAS	2023788-19-2
Molecular Formula	C225H348N48O68
Appearance	White power
Molar Mass	4813.45

Tirzepatide (LY3298176) is a dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist that is being developed for the treatment of type 2 diabetes. Tirzepatide (LY3298176) shows significantly better efficacy with regard to glucose control and weight loss than do Dulaglutide.

Tirzepatide, also known as LY 3298176, is a dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist. Tirzepatide has a greater affinity to GIP receptors than to GLP-1 receptors, and this dual agonist behavior has been shown to produce greater reductions of hyperglycemia compared to a selective GLP-1 receptor agonist. Signaling studies reported that tirzepatide mimics the actions of natural GIP at the GIP receptor. Tirzepatide was approved for improving blood sugar control in adults with type 2 diabetes, as an addition to diet and exercise.

Appearance: Powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: To be determined

Shelf Life: >2 years if stored properly

Drug Formulation: To be determined

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Other Products

Shop Fast shipping, safe delivery, high quality weight loss Peptide Tirzepatide 2023788-19-2 30mg HM-Detailed Image 3

Our advantage

Quality: Purity above 99%, directly produced by the manufacturer, can accept quality testing, and can also customize any content of powder, liquid, oil, etc.

Transport: We can accept sea freight, air freight, and express delivery, with a guarantee time of 1-2 weeks and a customs clearance rate of over 99%. Even if the goods are detained, you can resend the freight and I will resend the goods.

Service: We can provide sterile water for you to directly mix and inject freeze-dried powder. In addition to powder, we also have liquids, water-based agents, oils, tablets, and professional customized synthesis routes. We provide you with professional guidance on product use, product synthesis, and product customization.

Price: We do not engage in price wars. Firstly, our quality can be guaranteed; Secondly, our transportation efficiency and customs clearance rate can be guaranteed; Thirdly, we will provide you with the highest quality service, in any aspect. If you have any questions, I will have the answer.

Company Profile

Shop Fast shipping, safe delivery, high quality weight loss Peptide Tirzepatide 2023788-19-2 30mg HM-Detailed Image 4

HuaMan Bio acquired early mastery of development and manufacturing of peptides, the short chain amino acids linked by peptide bonds that have enabled new generations of small molecule drugs that closely mimic the body's natural pathways. Now HuaMan Bio possesses first-class capabilities to manufacture peptides at industrial scale and in full compliance with the strictest Good Manufacturing Practice (cGMP) standards.pharmaceutical raw materials, food and feed additives, veterinary drugs and other fields, the enterprise adhering to provide customers with quality service, supply high-quality products, "world peace and health" as its responsibility, the company adhering to the "meet all customer requirements for products" as the service concept, Guarantee "provide qualified products" as the service principle, so that you get "God-like" noble shopping enjoyment. Our company has more than 1000 kinds of polypeptides, raw materials inventory, at any time to meet the various needs of customers for products. Is your best partner.

Transportation & packaging

Shop Fast shipping, safe delivery, high quality weight loss Peptide Tirzepatide 2023788-19-2 30mg HM-Detailed Image 7

FAQ

Q1: What's your MOQ?
A:It depends on different products,we can accept sample order or provide free sample for your test.

Q2:How about delivery leadtime?
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)

Q3: Is there a discount?
A:Different quantity has different discount.

Q4:How to start orders or make payments?
A:Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T.

Q5: How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.

Q6. We don't know you at all, how can we trust you?
A: You are always warm welcomed to visit us at any time. Commitment is the No.1 Point of our Enterprise's Value.

Q7.Do you test all your goods before delivery?
A:Yes, we have 100% test before delivery,International Authorized Third-Party Test for the products if you need are highly welcomed.

ECHEMI Editorial Reference

L-DOPA is a natural form of DOPA used in the treatment of Parkinson's disease. L-DOPA is the precursor of dopamine and product of tyrosine hydroxylase.Target: Dopamine ReceptorL-DOPA (L-3,4-dihydroxyphenylalanine) is a chemical that is made and used as part of the normal biology of humans, some animals and plants. Some animals and humans make it via biosynthesis from the amino acid L-tyrosine. L-DOPA is the precursor to the neurotransmitters dopamine, norepinephrine (noradrenaline), and
Solid
L-dopa is an optically active form of dopa having L-configuration. Used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease It has a role as a prodrug, a hapten, a neurotoxin, an antiparkinson drug, a dopaminergic agent, an antidyskinesia agent, an allelochemical, a plant growth retardant, a human metabolite, a mouse metabolite and a plant metabolite. It is a dopa, a L-tyrosine derivative and a non-proteinogenic L-alpha-amino acid. It is a conjugate acid of a L-dopa(1-). It is an enantiomer of a D-dopa. It is a tautomer of a L-dopa zwitterion.|Levodopa is a prodrug of dopamine that is administered to patients with Parkinson's due to its ability to cross the blood-brain barrier. Levodopa can be metabolised to dopamine on either side of the blood-brain barrier and so it is generally administered with a dopa decarboxylase inhibitor like carbidopa to prevent metabolism until after it has crossed the blood-brain barrier. Once past the blood-brain barrier, levodopa is metabolized to dopamine and supplements the low endogenous levels of dopamine to treat symptoms of Parkinson's. The first developed drug product that was approved by the FDA was a levodopa and carbidopa combined product called Sinemet that was approved on May 2, 1975.|Levodopa is an Aromatic Amino Acid.|Levodopa (L-Dopa) is an amino acid precursor of dopamine and is the most effective and commonly used drug in the treatment of Parkinson disease. Levodopa is usually combined with carbidopa, which is an inhibitor of L-amino acid decarboxylase, the plasma enzyme that metabolizes levodopa peripherally. Treatment with the combination of levodopa and carbidopa has been associated with mild and transient increases in serum enzymes in a proportion of patients and with very rare instances of clinically apparent acute liver injury.|Levodopa is an amino acid precursor of dopamine with antiparkinsonian properties. Levodopa is a prodrug that is converted to dopamine by DOPA decarboxylase and can cross the blood-brain barrier. When in the brain, levodopa is decarboxylated to dopamine and stimulates the dopaminergic receptors, thereby compensating for the depleted supply of endogenous dopamine seen in Parkinson's disease. To assure that adequate concentrations of levodopa reach the central nervous system, it is administered with carbidopa, a decarboxylase inhibitor that does not cross the blood-brain barrier, thereby diminishing the decarboxylation and inactivation of levodopa in peripheral tissues and increasing the delivery of dopamine to the CNS.|The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system.

Certificates

Basic Info

Product Name:

DOPA

Other Name:

L-Tyrosine,3-hydroxy-;Alanine,3-(3,4-dihydroxyphenyl)-,L-;3-Hydroxy-L-tyrosine;DA;(-)-3,4-Dihydroxyphenylalanine;Levodopa;L-3,4-Dihydroxyphenylalanine;3,4-Dihydroxy-L-phenylalanine;L-DOPA;DOPA;L-β-(3,4-Dihydroxyphenyl)-α-alanine;L-(-)-Dopa;β-(3,4-Dihydroxyphenyl)-α-L-alanine;(-)-Dopa;3-(3,4-Dihydroxyphenyl)-L-alanine;β-(3,4-Dihydroxyphenyl)alanine;β-(3,4-Dihydroxyphenyl)-L-alanine;Dihydroxy-L-phenylalanine;Dopar;Levopa;Eldopal;Pardopa;Helfo-dopa;Insulamina;Larodopa;Dopalina;Dopaston;Dopaflex;3,4-Dihydroxyphenylalanine;3,4-Dihydroxyphenyl-L-alanine;L-3-(3,4-Dihydroxyphenyl)alanine;Dopaston SE;L-4,5-Dihydroxyphenylalanine;Dopicar;Dopastone;Dopal;Doparkine;Eurodopa;Dopaidan;Eldopatec;Parda;Eldopar;Dopasol;Laradopa;Weldopa;Doparl;Dopastral;Veldopa;Doprin;Ledopa;Deadopa;Maipedopa;Bendopa;Cidandopa;(2S)-2-Amino-3-(3,4-dihydroxyphenyl)propanoic acid;Syndopa;Alphadopa;Dihydroxyphenylalanine;(S)-3,4-Dihydroxyphenylalanine;3-Hydroxytyrosine;Brocadopa;(2S)-2-Amino-3-(3,4-dihydroxyphenyl)propanoic acid;Inbrija;23734-74-9;25525-15-9;34241-25-3;72572-99-7;72573-00-3;88250-23-1;90638-38-3

CAS No.:

59-92-7

Molecular Formula:

C9H11NO4

InChIKeys:

InChIKey=WTDRDQBEARUVNC-LURJTMIESA-N

Molecular Weight:

197.18800

Exact Mass:

197.19

EC Number:

200-445-2

UNII:

46627O600J

NSC Number:

759573|118381

DSSTox ID:

DTXSID9023209

NCI Thesaurus Code:

C611

Color/Form:

Colorless to white crystals or crystalline powder; needles from water

ATC Code:

N04BA01|N04BA03|N04BA02|N - Nervous system

HScode:

2932999099

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

103.78000

XLogP3:

0.75250

Appearance:

Solid

Density:

1.51 g/cm³

Melting Point:

284-286 °C

Boiling Point:

448.4±45.0 °C at 760 mmHg

Flash Point:

225.0±28.7 °C

Refractive Index:

-12 ° (C=5, 1mol/L HCl)

Water Solubility:

Slightly soluble in water, dilute hydrochloric acid and formic acid. Insoluble in ethanol.

Storage Conditions:

2-8°C

Toxicity:

LD50 in mice (mg/kg): 3650 ±327 orally, 1140 ±66 i.p., 450 ±42 i.v., >400 s.c.; in male, female rats (mg/kg): >3000, >3000 orally; 624, 663 i.p.; >1500, >1500 s.c. (Clark)

Specific rotation:

Specific optical rotation: -13.1 deg @ 13 °C/D (c= 5.12 in 1 N HCl); max absorption (0.001 N HCl): 220.5 nm (log e= 3.79); 280 nm (log e= 3.42)

Odor:

Odorless

Taste:

Tasteless

Dissociation Constants:

pKa = 2.32

Collision Cross Section:

148.7 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|138.21 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|144.27 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|149.4 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|147.5 Å² [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|140.6 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|141.2 Å² [M+Na-2H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|145.4 Å² [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]|141.6 Å² [M-2H+Na]-

See More DOPA Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Skin irritation, Category 2

Specific target organ toxicity â single exposure, Category 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More DOPA Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Propylene glycol

Location:
No .41 Optics Valley Avenue, East Lake High-tech Development Zone, Wuhan ,China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment

Average lead Time:
5 days

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2024

Nanjing Huaman Import and Export Co., Ltd was established in 2024 with strong research and development capabilities and superb synthesis technology, as well as advanced quality control measures. Effectively promote the joint venture and cooperation with the major enterprises, manufacturers, with the idea of industrial development to serve the society and the majority of users. We always adhere to the market demand as the orientation, constantly synthesizing new high-tech chemical products , mainly exported to the United States, Europe, India, South Africa, Nigeria and other countries and regions, has a wealth of export experience, to ensure transportation safety, can let each customer as soon as possible to safely receive the goods.

Inquiry History

7 Inquiries

Country	Product	Purchase Quantity	Date Posted
Russia	Levodopa 59-92-7 White crystalline powder	180 MT	Jun 22, 2026
Canada	Levodopa	1000 KG	Oct 28, 2025
Indonesia	Levodopa	500 KG	Aug 21, 2026
India	LEVODOPA	1250 KG	Jun 22, 2026
United States	Levodopa	1 KG	Oct 27, 2025
Pakistan	Levodopa	2 G	Nov 8, 2023
India	Levodopa	17 MT	Apr 28, 2025

Post an enquiry for this product

More Choices Find All Products for Sale 

Product Name	Grade / Content	Price	Supplier Name	Details
Chinese herbal extract manufacture PNQ supply Levodopa	Chemical Grade/99	$10/UNIT EXW	Wuhan Pnq Int Trade Co., Ltd	Inquiry
Levodopa(59-92-7) 99%	top/99	$2100-2200/MT FOB	Xiamen Eagle Chemical Corporation	Inquiry
High Quality Mucuna Pruriens Extract L-Dopa Levo-Dopa Powder CAS 59-92-7 Natural Neuro Support Raw Material	Pharmaceutical Grade/99	$80-90/KG FOB	Fulecare	Inquiry
Levodopa(59-92-7)	Pharmaceutical Grade/	$50-65/KG FOB	Xi'an Lanshan Biotechnology Co., Ltd.	Inquiry
59-92-7	/		Guangzhou Yaoguang Technology Co., Ltd.	Inquiry

China Professional Factory Manufacturer Supply High Qulity Levodopa CAS 59-92-7 HM

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

Related Products

More Choices Find All Products for Sale 

Related Searches

More from this Seller

Hot Related Products