Description

Somatotropin (32-46) is a specific bioactive fragment of human growth hormone (hGH) with the CAS registry number 89187-22-4. This peptide is of significant interest for its role in research focused on the structure-activity relationships of growth hormone and its receptor interactions. It serves as a critical tool for scientists and developers in the pharmaceutical and biotechnology sectors, particularly those engaged in endocrinology research, peptide-based drug discovery, and the development of diagnostic assays.

Application

• Biomedical Research: Used as a reference standard and active component in studies investigating the mechanism of action, receptor binding, and signaling pathways of human growth hormone.
• Pharmaceutical Development: Serves as a key intermediate or model compound in the research and development of novel peptide therapeutics and growth hormone analogs.
• Diagnostic Reagent Production: Employed in the development and calibration of immunoassays (e.g., ELISA) and other diagnostic kits for measuring growth hormone levels or activity.
• Academic & Institutional Studies: Utilized in university and research institute laboratories for fundamental endocrinology and peptide chemistry research.
• Bioconjugation & Labeling Studies: Acts as a substrate for developing labeled (e.g., fluorescent, radioactive) probes for tracking and imaging studies.

Basic Information

Item	Detail
Product Name	Somatotropin (32-46)
CAS No.	89187-22-4
Molecular Formula	C69H113N21O22S2
Molecular Weight	1636.9 g/mol
Synonyms	Growth Hormone (32-46); hGH (32-46); Human Somatotropin Fragment 32-46; Somatropin (32-46); GH (32-46); Growth Hormone Releasing Factor (32-46); Pituitary Growth Hormone Fragment; LDTYTQCFSETLEPN
EINECS	Contact for details

Quality Control

Our Somatotropin (32-46) is produced under stringent conditions to ensure high purity and batch-to-batch consistency, suitable for sensitive research applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity determination and mass spectrometry (MS) for identity confirmation. A detailed Certificate of Analysis (COA) documenting purity, peptide content, and other critical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature before opening to minimize moisture absorption. For long-term storage, consider under inert atmosphere or desiccant.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC & MS)	Conforms to reference standard
Purity (HPLC)	≥ 95%
Peptide Content	≥ 80% (by weight)
Amino Acid Composition	Conforms to theoretical values (±10%)
Single Impurity (HPLC)	≤ 1.0%
Water Content (KF)	≤ 5.0%
Acetate Content (HPIC)	≤ 10.0%

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