Description

D(+)-Carnitine is the dextrorotatory enantiomer of the naturally occurring amino acid derivative, L-carnitine. This high-purity isomer is critical for applications requiring specific stereochemical configuration, where the biological activity of the standard L-form is undesirable or must be studied in contrast. It serves as a valuable chiral building block and reference standard in pharmaceutical research, analytical chemistry, and the synthesis of specialized biochemicals. Key industrial users include manufacturers of fine chemicals, research institutions, and companies developing diagnostic assays or metabolic studies.

Application

• Pharmaceutical Research & Development: Used as a chiral intermediate in the synthesis of novel drug candidates and as a critical reference standard for analytical method development and validation.
• Biochemical Research: Serves as a stereospecific control or inhibitor in enzymatic and metabolic pathway studies to investigate carnitine palmitoyltransferase (CPT) activity and fatty acid metabolism.
• Diagnostic Reagent Manufacturing: Employed in the formulation of calibration standards and controls for clinical diagnostic kits that measure carnitine levels or related metabolic functions.
• Fine Chemical Synthesis: Acts as a premium chiral precursor for the production of specialized compounds where the D-isomer's distinct properties are required.
• Nutritional Science Studies: Utilized in comparative research to understand the specific biological effects and absorption characteristics of different carnitine enantiomers.

Basic Information

Product Name	D(+)-Carnitine
CAS No.	541-14-0
Molecular Formula	C7H15NO3
Molecular Weight	161.20 g/mol
Synonyms	(R)-Carnitine; D-Carnitine; Dextrocarnitine; (R)-3-Carboxy-2-hydroxy-N,N,N-trimethyl-1-propanaminium hydroxide, inner salt; Vitamin BT (D-form); Levocarnitine enantiomer; (R)-(-)-Carnitine; Carnitine D-isomer
EINECS	208-768-0

Quality Control

Our D(+)-Carnitine is produced under a strict quality management system. Each batch is subjected to comprehensive analytical testing, including chiral purity assay, to ensure it meets exacting standards for research and industrial use. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, detailing parameters such as enantiomeric excess, chemical purity, and identification. Our quality commitment supports compliance with relevant guidelines for research chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to minimize exposure to atmospheric moisture. For long-term storage, consider the use of desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% (D-isomer)
Specific 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.