Description

D-Cysteic Acid is the D-enantiomer of cysteic acid, a sulfonic acid derivative of the amino acid cysteine. This specific stereoisomer is a valuable chiral building block and intermediate in advanced organic synthesis and pharmaceutical research. It is particularly relevant for industries requiring high-purity, optically active compounds for the development of active pharmaceutical ingredients (APIs), peptide synthesis, and biochemical research.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the asymmetric synthesis of novel drug candidates and complex molecules.
• Peptide Chemistry: Used in the synthesis of modified peptides where the sulfonic acid group introduces unique polarity and stability.
• Biochemical Research: Employed as a standard or reagent in enzymatic studies and metabolic pathway investigations involving sulfur-containing amino acids.
• Cosmetic & Personal Care Actives: Potential application in the formulation of high-end skincare products targeting antioxidant and cell-communicating properties.
• Food & Nutrition Science: Used in research related to amino acid fortification, flavor enhancement, and the study of Maillard reaction products.

Basic Information

Product Name	D-Cysteic Acid
CAS No.	35554-98-4
Molecular Formula	C3H7NO5S
Molecular Weight	169.16 g/mol
Synonyms	(R)-2-Amino-3-sulfopropanoic Acid; D-3-Sulfoalanine; (R)-Cysteic Acid; D-2-Amino-3-sulfopropionic Acid; (R)-2-Amino-3-sulfopropionic Acid; D-α-Amino-β-sulfopropionic Acid; D-Cysteine Sulfonic Acid
EINECS	Contact for details

Quality Control

Our D-Cysteic Acid is produced under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) detailing identity, purity, and specific optical rotation are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed tightly after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (D-isomer)
Specific Optical Rotation	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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