Description

L-Cysteine, Nitrite (Ester) (9Ci) is a specialized derivative of the amino acid L-cysteine, where the nitrite ester functional group introduces unique reactivity. This compound is valued as a key synthetic intermediate and research chemical for developing novel molecules in pharmaceutical and biochemical research. It is primarily utilized by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and agrochemical industries for targeted synthesis and method development.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of more complex drug candidates and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used in proteomics and enzymology studies to investigate protein structure, function, and modification pathways.
• Fine Chemical Synthesis: Acts as a versatile reagent for introducing sulfur and nitrogen-containing functional groups in complex organic syntheses.
• Agrochemical Development: Employed in the research and development of novel pesticides and herbicides that require specific chiral and reactive intermediates.
• Peptide Chemistry: Utilized in the preparation of modified peptides and peptidomimetics for therapeutic and diagnostic applications.

Basic Information

Product Name	L-Cysteine, Nitrite (Ester) (9Ci)
CAS No.	51209-75-7
Molecular Formula	C3H6N2O3S
Molecular Weight	150.16 g/mol
Synonyms	L-Cysteine nitrite ester; Cysteine nitrite; S-Nitrosocysteine nitrite ester (related); 2-Amino-3-mercaptopropanoic acid nitrite ester; (R)-2-Amino-3-sulfanylpropyl nitrite; Nitrous acid, ester with L-cysteine
EINECS	Contact for details

Quality Control

Our L-Cysteine, Nitrite (Ester) (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive 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 batch-specific results are available upon request to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This material is moisture-sensitive and should be handled under an inert atmosphere to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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