Description

Streptothricin D CAS NO 3776-37-2 is a specific component of the streptothricin antibiotic complex, a group of basic, water-soluble antibiotics produced by *Streptomyces* bacteria. This compound is valued in research for its role in studying the structure-activity relationships and biological mechanisms of the broader streptothricin family. It is primarily required by research institutions, pharmaceutical R&D departments, and biotechnology companies engaged in antimicrobial research, natural product chemistry, and the development of novel biochemical tools.

Application

• Antimicrobial Research: Used as a reference standard or active component in studies investigating the efficacy and mechanism of action of streptothricin-class antibiotics.
• Biochemical Studies: Employed in research focused on protein synthesis inhibition and interactions with ribosomal subunits.
• Natural Product Isolation & Analysis: Serves as a key analyte in the development and validation of chromatographic methods (e.g., HPLC, LC-MS) for separating and quantifying components of the streptothricin complex.
• Microbiology & Cell Culture: Applied in selective media or as a tool compound in microbiological assays to study bacterial resistance and susceptibility patterns.
• Pharmaceutical R&D: Acts as a building block or intermediate in exploratory synthetic programs aimed at modifying antibiotic scaffolds to improve properties.

Basic Information

Product Name	Streptothricin D
CAS No.	3776-37-2
Molecular Formula	C19H34N8O8
Molecular Weight	502.52 g/mol
Synonyms	Streptothricin D; Antibiotic R4D; LL-AB 664D; Nβ-(1-Iminoethyl)-L-2,4-diaminobutyric Acid Heptapeptide; Streptolin B; (S)-2-Amino-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-Amino-4-[[(2S)-2-[[(2S)-2-Amino-4-(carbamoylamino)butanoyl]amino]-4-carbamoylbutanoyl]amino]butanoyl]amino]-4-carbamoylbutanoyl]amino]butanoyl]amino]-4-carbamoylbutanoyl]amino]butanoyl]amino]butanoic Acid
EINECS	Contact for details

Quality Control

Our Streptothricin D is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability for research applications. Each lot undergoes comprehensive analytical testing, including identification by spectroscopic methods and purity assessment by HPLC. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to maintain stability. For long-term storage, consider desiccated conditions.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 1.0%
Biological Activity	Contact for details

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