Description

Pressinoic Acid CAS NO 35748-51-7 is a high-purity synthetic peptide derivative, specifically a protected fragment of the neurohypophyseal hormone vasopressin. This compound serves as a critical building block (intermediate) in the synthesis of complex peptide pharmaceuticals and research biochemicals. It is essential for manufacturers and research institutions in the pharmaceutical, biotechnology, and life science sectors requiring reliable, high-quality intermediates for advanced peptide synthesis.

Application

• Pharmaceutical Intermediate: Key precursor in the multi-step synthesis of vasopressin and its therapeutic analogues.
• Peptide Research: Used as a protected fragment in solid-phase and solution-phase peptide synthesis (SPPS) for constructing larger bioactive peptides.
• Bioconjugation: Serves as a specialized component for creating peptide-based conjugates for drug delivery or diagnostic applications.
• Reference Standard: Utilized as a high-purity analytical standard in quality control laboratories for method development and validation.
• Biochemical Tool: Employed in research to study the structure-activity relationships (SAR) of neurohypophyseal hormones.

Basic Information

Product Name	Pressinoic Acid
CAS No.	35748-51-7
Molecular Formula	C₄₆H₆₅N₁₃O₁₂S₂
Molecular Weight	1040.22 g/mol
Synonyms	1-{N-[N-(N-L-Tyrosyl-L-phenylalanyl)-L-glutaminyl]-L-asparaginyl}-L-cysteinyl-L-prolyl-L-arginylglycinamide, cyclic (1→6)-disulfide; [Cys¹,6]-Pressinoic Acid; H-Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH₂ (disulfide bridge: 1-6); Vasopressin (1-9) fragment; Tocinoic Acid (1-9); Pressinoic Acid (1-9); Pressinoic Acid cyclic (1→6)-disulfide
EINECS	Contact for details

Quality Control

Our Pressinoic Acid is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity, MS for identity confirmation, and chiral purity checks, to ensure it meets exacting pharmaceutical-grade standards. Certificates of Analysis (COA) with full traceability are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. The product is hygroscopic (moisture-sensitive); allow the sealed vial to equilibrate to room temperature before opening to minimize condensation and moisture uptake.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Purity (HPLC, Total)	≥ 95.0%
Single Impurity (HPLC)	≤ 1.0%
Water Content (KF)	≤ 5.0%
Optical Rotation	Contact for details

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