Description

Bz-Osu CAS NO 23405-15-4 is a high-purity chemical reagent widely used as a key building block in organic synthesis and peptide chemistry. Its primary value lies in its role as an efficient active ester for the formation of amide bonds under mild conditions, which is critical for constructing complex molecules. This product is essential for research and development laboratories, pharmaceutical intermediates manufacturing, and fine chemical synthesis where precise and reliable coupling reactions are required.

Application

• Peptide Synthesis: Acts as a crucial coupling reagent for the formation of peptide bonds in solid-phase and solution-phase synthesis.
• Pharmaceutical Intermediates: Used in the production of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Bioconjugation: Facilitates the labeling of proteins, antibodies, and other biomolecules with various probes and tags.
• Polymer Chemistry: Employed in the synthesis of specialized polyamides and other functional polymers.
• Organic Synthesis: Serves as a versatile reagent for amide and ester formation in multi-step synthetic routes.
• Biochemical Research: Utilized in the preparation of enzyme substrates, inhibitors, and other research compounds.

Basic Information

Product Name	Bz-Osu
CAS No.	23405-15-4
Molecular Formula	C11H9NO5
Molecular Weight	235.19 g/mol
Synonyms	N-Hydroxysuccinimide Benzoate; Benzoyloxy Succinimide; Succinimidyl Benzoate; Benzoic Acid N-Hydroxysuccinimide Ester; NHS-Benzoate; Bz-OSu; 1-[(Benzoyloxy)succinimidyl]; 2,5-Dioxopyrrolidin-1-yl benzoate
EINECS	Contact for details

Quality Control

Our Bz-Osu is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity assessment and identity confirmation by IR and NMR spectroscopy. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep the container sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	150 - 154 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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