Description

Somatotropin (73-128) Glycinamide is a bioactive peptide fragment derived from human growth hormone (hGH). This specific sequence is critical for research into the structure-activity relationships and metabolic functions of somatotropin. It serves as a high-purity reference standard and a key intermediate for advanced biochemical studies. This product is essential for pharmaceutical R&D laboratories, academic institutions, and biotech companies focused on endocrinology, peptide synthesis, and therapeutic development.

Application

• Pharmaceutical Reference Standard: Used as a certified reference material for the quality control and assay development of growth hormone-related products.
• Biochemical Research: A vital tool for studying the receptor binding, signaling pathways, and biological activity of the growth hormone molecule.
• Peptide Synthesis Intermediate: Serves as a key building block in the solid-phase or solution-phase synthesis of longer hGH analogs or modified peptides.
• Antibody Production: Can be used as an antigen to generate specific antibodies for immunoassays (ELISA, Western Blot) and diagnostic applications.
• Structure-Function Studies: Enables research to map active sites and understand the contribution of specific amino acid sequences to hGH's overall function.
• Cell Culture & In Vitro Assays: Applied in cell-based assays to investigate the effects of growth hormone fragments on proliferation and metabolism.

Basic Information

Product Name	Somatotropin (73-128) Glycinamide
CAS No.	79804-88-9
Molecular Formula	C254H402N72O71S2
Molecular Weight	~5810.5 g/mol
Synonyms	hGH (73-128) Glycinamide; Human Growth Hormone Fragment (73-128)-Gly-NH2; Somatotropin Fragment 73-128 amide; Growth Hormone (73-128) peptide amide; GH (73-128)-NH2; Recombinant hGH (73-128) Glycinamide
EINECS	Contact for details

Quality Control

Our Somatotropin (73-128) Glycinamide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, mass spectrometry (MS) for identity confirmation, and amino acid analysis (AAA). We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with research-grade specifications. Our quality commitment supports reliable and reproducible results for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake. For long-term storage, keep desiccated at -20°C.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC & MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Peptide Content	≥ 80.0% (by AAA)
Water Content (KF)	≤ 5.0%
Acetate Content (HPLC)	≤ 10.0%
Single Impurity (HPLC)	≤ 1.0%

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