Description

Phenyltrimethylammonium Tribromide is a versatile and highly reactive brominating agent, also known as PTAB. This compound is valued for its efficiency and selectivity in introducing bromine atoms into organic molecules under mild conditions. It is an essential reagent for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable and controlled bromination.

Application

• Pharmaceutical Intermediate Synthesis: A key reagent for the selective bromination of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Agrochemical Production: Used in the synthesis of brominated herbicides, fungicides, and other crop protection agents.
• Organic Synthesis & Research: Employed in laboratories for electrophilic aromatic substitution and alkene bromination reactions.
• Dye & Pigment Manufacturing: Facilitates the bromination step in the production of certain high-performance dyes and colorants.
• Polymer Modification: Acts as a bromination agent for flame retardant additives or to modify polymer properties.
• Material Science: Used in the preparation of brominated compounds for electronic materials and liquid crystals.

Basic Information

Product Name	Phenyltrimethylammonium Tribromide
CAS No.	4207-56-1
Molecular Formula	C9H14Br3N
Molecular Weight	375.93 g/mol
Synonyms	PTAB; Trimethylphenylammonium Tribromide; Benzyltrimethylammonium Tribromide; Phenyltrimethylammonium Perbromide; N,N,N-Trimethylbenzenaminium Tribromide; Tribromide, Phenyltrimethylammonium; Tribromo(phenyltrimethylammonium); Brominating Agent PTAB
EINECS	224-125-6

Quality Control

Our Phenyltrimethylammonium Tribromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure high purity, consistent reactivity, and compliance with relevant industry standards. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming specifications for assay, identity, and impurity profiles.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air or light should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Assay (PTAB)	≥ 98.0 %
Melting Point	118 - 122 °C
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %

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