Description

D-Cystathionine is a non-proteinogenic sulfur-containing amino acid that serves as a key intermediate in the transsulfuration pathway. This high-purity compound is essential for research and development in biochemistry and metabolic studies, particularly in investigating sulfur amino acid metabolism and related disorders. It is primarily utilized by pharmaceutical researchers, academic institutions, and diagnostic manufacturers focused on enzymology and metabolic pathway analysis.

Application

• Biochemical Research: Critical substrate for studying enzymes like cystathionine β-synthase (CBS) and cystathionine γ-lyase (CGL) in the transsulfuration pathway.
• Pharmaceutical Development: Used in metabolic disorder research, including homocystinuria and other inborn errors of metabolism.
• Diagnostic Reagents: Serves as a key component in enzymatic assay kits for clinical diagnostics and research.
• Nutritional Science: Investigated for its role in glutathione synthesis and cellular redox balance.
• Academic Studies: Employed in university and institutional labs for teaching and advanced research in amino acid chemistry and metabolism.
• Reference Standard: Used as a high-purity calibrant or reference material in analytical laboratories (HPLC, LC-MS).

Basic Information

Product Name	D-Cystathionine
CAS No.	2998-83-6
Molecular Formula	C7H14N2O4S
Molecular Weight	222.26 g/mol
Synonyms	D-Cystathionine; (2R)-2-Amino-4-{[(2R)-2-amino-2-carboxyethyl]sulfanyl}butanoic acid; (R,R)-Cystathionine; D-Allocystathionine; (2R,2'R)-Cystathionine; L-D-Cystathionine; (R)-Cystathionine; D-three-Cystathionine
EINECS	221-081-3

Quality Control

Our D-Cystathionine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the stringent requirements for research and development applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a desiccated environment to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	+20.0° to +24.0° (c=1 in 1N HCl)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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