Description

Chembrdg-Bb 4011816 is a high-purity chemical compound identified by CAS No. 25935-87-9, serving as a critical intermediate and functional additive in advanced manufacturing processes. Its consistent quality and reliable performance make it essential for formulations requiring precise chemical properties and stability. This product is primarily utilized by the pharmaceutical, agrochemical, and specialty polymer industries for research, development, and production.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other drug substances.
• Agrochemical Synthesis: Acts as a key building block in the production of herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modification: Employed as a cross-linking agent or functional monomer to enhance the properties of specialty polymers and coatings.
• Fine Chemical Production: Serves as a precursor in the manufacture of complex organic compounds for various industrial applications.
• Research & Development: A valuable reagent for chemical research, process development, and analytical method validation in laboratory settings.

Basic Information

Product Name	Chembrdg-Bb 4011816
CAS No.	25935-87-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	1,3-Benzenedicarboxylic acid, 5-sulfo-, polymer with 1,3-benzenediamine; Poly(1,3-phenylenediamine-5-sulfobenzenedicarboxylic acid); Sulfonated poly(benzimidazole) precursor; PBI-SO3H intermediate; 4011816; Chembrdg Bb 4011816; Aryl sulfonated polyamide intermediate; High-temperature polymer electrolyte precursor
EINECS	Contact for details

Quality Control

Our Chembrdg-Bb 4011816 is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the required specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light tan powder or solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfonate Content (Titration)	Contact for details
Residual Solvents (GC)	Meets ICH guidelines

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