Description

D-Tryptophan, n-D-Tryptophyl- CAS NO 58607-72-0 is the D-enantiomer of the essential amino acid tryptophan, a critical building block in biochemistry and pharmaceutical synthesis. This high-purity chiral compound is valued for its role in producing peptides and active pharmaceutical ingredients (APIs) with specific stereochemical requirements. It is primarily utilized by research institutions, pharmaceutical manufacturers, and fine chemical producers engaged in advanced peptide synthesis and metabolic pathway studies.

Application

• Pharmaceutical Intermediate: Key chiral building block for the synthesis of peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used in metabolic studies, enzyme-substrate interaction research, and as a standard in analytical chromatography.
• Peptide Synthesis: Essential raw material in solid-phase and solution-phase peptide synthesis for creating custom peptides.
• Nutritional Science Research: Employed in studies investigating the differential biological effects of D- vs. L-amino acid isomers.
• Diagnostic Reagent Manufacturing: Component in the formulation of specialized diagnostic kits and assay reagents.
• Cosmetic Peptide Production: Starting material for synthesizing certain bioactive peptides used in advanced skincare formulations.

Basic Information

Product Name	D-Tryptophan, n-D-Tryptophyl- CAS NO 58607-72-0
CAS No.	58607-72-0
Molecular Formula	C11H12N2O2
Molecular Weight	204.23 g/mol
Synonyms	D-Tryptophan; (R)-Tryptophan; D-(-)-Tryptophan; (R)-2-Amino-3-(1H-indol-3-yl)propanoic Acid; n-D-Tryptophyl-; D-Trp; H-D-Trp-OH; (2R)-2-Azaniumyl-3-(1H-indol-3-yl)propanoate
EINECS	Contact for details

Quality Control

Our D-Tryptophan is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets stringent specifications for pharmaceutical and research applications. Certificates of Analysis (COA) detailing purity, optical rotation, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a low-humidity environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥98.5%
Optical Rotation [α]20/D	-30.0° to -33.0° (c=1 in H2O)
Chiral Purity (D-Isomer)	≥99.0%
Loss on Drying	≤0.5%
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.