Description

Poly (Da) Sodium Salt is a high-purity, synthetic oligonucleotide derivative widely used in molecular biology and diagnostic applications. Its primary value lies in its consistent quality and reliable performance as a critical reagent in sensitive analytical and synthetic processes. This product is essential for research institutions, diagnostic kit manufacturers, and biotechnology companies engaged in nucleic acid-based technologies.

Application

• As a calibration standard or reference material in quantitative PCR (qPCR) and digital PCR (dPCR) assays.
• Utilized in the development and quality control of molecular diagnostic tests and kits.
• Serves as a primer, probe, or template in various nucleic acid amplification and sequencing workflows.
• Application in hybridization-based techniques such as microarrays and fluorescence in situ hybridization (FISH).
• Used as a model compound for studying oligonucleotide stability, modification, and delivery systems.
• Potential use in the synthesis of more complex nucleic acid constructs and functional biomaterials.

Basic Information

Product Name	Poly (Da) Sodium Salt
CAS No.	25191-20-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polydeoxyadenylic acid sodium salt; Poly(dA) sodium salt; Sodium polydeoxyadenylate; Poly(dA); dA Homopolymer sodium salt; Oligo(dA) sodium salt; Deoxyadenosine homopolymer sodium salt
EINECS	Contact for details

Quality Control

Our Poly (Da) Sodium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including purity assessment by HPLC, confirmation of identity, and verification of concentration. A Certificate of Analysis (COA) detailing all relevant specifications is provided to ensure traceability and compliance with your research or production requirements.

Storage

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

Specification

Item	Specification
Appearance	White to off-white solid or lyophilized powder
Identification (HPLC/UV)	Conforms
Purity (HPLC)	≥ 95%
Oligonucleotide Length	Specified range (e.g., 12-18 mer, 20-30 mer)
Concentration	As specified on COA (e.g., µM or µg/µL)
Absorbance Ratio (A260/A280)	1.8 - 2.0
Endotoxin Level	< 10 EU/mg (for molecular biology grade)
Solubility	Soluble in TE buffer or nuclease-free water

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