Description

Chromogen I is a specialized organic chemical compound used as a key intermediate and reagent in advanced synthesis. This compound is valued for its role in producing high-performance colorants and facilitating sensitive detection methods in analytical chemistry. It is essential for manufacturers and R&D laboratories in the pharmaceutical, diagnostic, and fine chemical sectors seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Diagnostic Reagent: Used in the formulation of clinical diagnostic kits, particularly in enzymatic and colorimetric assays.
• Dye & Pigment Synthesis: Serves as a key precursor in the manufacturing of specialized dyes and organic pigments.
• Biochemical Research: Employed as a substrate or chromogenic probe in enzymatic studies and histochemical staining.
• Analytical Chemistry: Functions as a sensitive reagent in spectrophotometric methods for detection and quantification.
• Fine Chemical Production: Utilized in the synthesis of complex organic molecules for various high-value industrial applications.

Basic Information

Product Name	Chromogen I
CAS No.	63535-27-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3,3',5,5'-Tetramethylbenzidine Dihydrochloride; TMB Dihydrochloride; TMB-2HCl; 3,3',5,5'-Tetramethyl-[1,1'-biphenyl]-4,4'-diamine Dihydrochloride; Chromogen TMB; TMB Chromogen; TMB Substrate; Benzidine, 3,3',5,5'-tetramethyl-, dihydrochloride
EINECS	Contact for details

Quality Control

Our Chromogen I is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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