Description

L-Cysteinesulfinic Acid is a key sulfur-containing amino acid derivative that serves as a critical intermediate in the biosynthesis of taurine and as a potent agonist for the NMDA subtype of glutamate receptors. Its high purity and stability are essential for ensuring reliable results in sensitive biochemical research and pharmaceutical development. This compound is primarily utilized by researchers in neuroscience, biochemistry, and by manufacturers in the pharmaceutical and nutraceutical industries for synthesis and analytical applications.

Application

• Neuroscience Research: Used as a selective agonist for NMDA receptors to study excitatory neurotransmission, synaptic plasticity, and neurotoxicity.
• Biochemical Pathway Studies: Serves as a crucial metabolic intermediate in the cysteine sulfinic acid pathway for taurine biosynthesis.
• Pharmaceutical Intermediates: Acts as a building block in the synthesis of more complex sulfur-containing pharmaceutical compounds.
• Nutraceutical Research: Investigated for its potential role in metabolic processes related to sulfur amino acid metabolism.
• Analytical Reference Standard: Employed as a high-purity standard in HPLC, LC-MS, and other analytical methods for quality control and method validation.
• Enzymology Studies: Used as a substrate for enzymes like cysteine dioxygenase in kinetic and mechanistic studies.

Basic Information

Product Name	L-Cysteinesulfinic Acid
CAS No.	1115-65-7
Molecular Formula	C3H7NO4S
Molecular Weight	153.16 g/mol
Synonyms	(2R)-2-Amino-3-sulfinopropanoic Acid; L-Cysteine Sulfinic Acid; Cysteine Sulfinate; CSA; (R)-Cysteinesulfinic Acid; 3-Sulfino-L-alanine; L-3-Sulfinoalanine; 2-Amino-3-sulfinopropionic Acid
EINECS	214-232-6

Quality Control

Our L-Cysteinesulfinic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and chiral integrity, to ensure it meets the stringent requirements for research and development. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting identity, purity, and other critical parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and purity. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	[α]20/D: +7.0° to +9.0° (c=1 in H2O)
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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