Description

6-S-Cysteinyldopa is a key biochemical intermediate and metabolite of melanin synthesis. This compound matters for researchers and manufacturers focused on pigment chemistry, dermatological studies, and the development of diagnostic markers. It is primarily needed by professionals in the pharmaceutical, cosmetic research, and biochemical analysis industries. Our supply ensures high purity and stability for critical applications.

Application

• Biochemical Research: As a precursor and metabolite in the study of melanogenesis and neuromelanin formation.
• Pharmaceutical Development: For investigating metabolic pathways related to melanoma and Parkinson's disease.
• Diagnostic Marker: Potential use in the development of assays for monitoring melanoma progression.
• Cosmetic Science: Research into skin pigmentation mechanisms and the development of depigmenting agents.
• Analytical Reference Standard: For use in HPLC, LC-MS, and other chromatographic methods to quantify related compounds in biological samples.
• Enzymology Studies: Substrate or intermediate for studying tyrosinase and related enzyme activities.

Basic Information

Product Name	6-S-Cysteinyldopa
CAS No.	64003-39-0
Molecular Formula	C12H16N2O6S
Molecular Weight	316.33 g/mol
Synonyms	5-S-Cysteinyldopa; CysDOPA; 2-S-Cysteinyldopa; L-3-(5-S-Cysteinyl)-3,4-dihydroxyphenylalanine; 3-(5-Cysteinyl)-L-dopa; 6-Cysteinyldopa; 5-Cysteinyldopa; 2-Cysteinyldopa
EINECS	Contact for details

Quality Control

Our 6-S-Cysteinyldopa is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry place, ideally at 2-8°C for long-term stability. Keep the container tightly sealed under an inert atmosphere if necessary to prevent oxidation.

Specification

Item	Specification
Appearance	White to light brown powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.