Description

Spag-1 Antigen is a specialized biochemical reagent with the CAS registry number 158935-38-7, designed for high-precision diagnostic and research applications. This compound is critical for the development and validation of immunoassays, where consistent quality and specificity are paramount. It is primarily utilized by pharmaceutical R&D teams, diagnostic kit manufacturers, and academic research institutions focused on immunology and biomarker discovery.

Application

• Immunoassay Development: Serves as a key antigenic component in the formulation of enzyme-linked immunosorbent assays (ELISA), lateral flow tests, and other immunodiagnostic platforms.
• Antibody Production & Screening: Used as an immunogen for generating specific antibodies or as a coating/capture antigen for screening hybridoma clones and characterizing antibody affinity.
• Clinical Diagnostics: Employed as a reference standard or calibrator in diagnostic tests for detecting specific antibodies or analytes in patient serum samples.
• Biomedical Research: Facilitates studies in immunology, autoimmune disease research, and vaccine development by providing a defined antigenic target.
• Quality Control (QC) in Manufacturing: Acts as a critical raw material for the in-process testing and final QC release of diagnostic kits to ensure lot-to-lot consistency and performance.

Basic Information

Product Name	Spag-1 Antigen
CAS No.	158935-38-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sperm-associated antigen 1; SPAG1; CT99; HSD-3.8; Spag-1 protein; Spag1 antigen; 158935-38-7
EINECS	Contact for details

Quality Control

Our Spag-1 Antigen is produced under a quality management system and undergoes rigorous analytical testing to ensure identity, purity, and functional activity. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing specifications such as purity (by HPLC), protein concentration, endotoxin levels, and functional immunoassay performance. We support compliance with relevant guidelines for in vitro diagnostic (IVD) and research use only (RUO) materials.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C or below. Avoid repeated freeze-thaw cycles. The product should be handled under appropriate laboratory conditions to maintain its integrity.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder or solution
Identification (IR / Immunoassay)	Conforms
Purity (HPLC)	≥ 95%
Protein Content (BCA/Bradford)	Provided on COA
Endotoxin Level (LAL)	< 1.0 EU/µg
Solubility	Specified buffer
Functional Activity (ELISA)	Conforms to reference standard

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