4433-16-3

Basic information

• Product Name: Bipicryl, HNBP
• Synonyms: 2,2',4,4',6,6'-Hexanitrobiphenyl;Bipicryl, HNBP;2,2',4,4',6,6'-Hexanitro-1,1'-biphenyl;2,4,6,2',4',6'-Hexanitrobiphenyl;Bipicryl;HNBP;NSC 11010
• CAS NO: 4433-16-3
• Molecular Formula: C₁₂H₄N₆O₁₂
• Molecular Weight: 424.19316
• Mol File: 4433-16-3.mol

Chemical Properties

• Boiling Point: 523.6°Cat760mmHg
• Flash Point: 250.1°C
• Appearance: /
• Density: 1.878g/cm³
• CAS DataBase Reference: Bipicryl, HNBP(CAS DataBase Reference)
• NIST Chemistry Reference: Bipicryl, HNBP(4433-16-3)
• EPA Substance Registry System: Bipicryl, HNBP(4433-16-3)

Safety Data

• Hazardous Substances Data: 4433-16-3(Hazardous Substances Data)

Usage

Uses

Used in Color Photography:
Bipicryl, HNBP is used as a sensitizer in color photography for enhancing the sensitivity of photographic materials to light, allowing for the capture of images under various lighting conditions.
Used in Military and Commercial Applications:
Bipicryl, HNBP is used as an explosive ingredient in military and commercial applications for its powerful detonation capabilities. Its high sensitivity to heat, shock, and friction makes it a potent explosive material, but also requires careful handling and strict safety protocols to prevent accidental detonation.
Due to the inherent risks associated with Bipicryl's explosive properties, its use is strictly limited and controlled in many countries, ensuring that only authorized individuals and organizations have access to this highly sensitive compound.

Upstream product

• 88-88-0 2,4,6-trinitrochlorobenzene 
• 95-49-8 2-methylchlorobenzene 
• 4185-53-9 picryl bromide 
• 160032-45-1 3-bromo-2,2',4,4',6,6'-hexanitrobiphenyl 
• 947-84-2 2-Biphenylcarboxylic acid 

Relevant articles and documents

Ullmann reaction of picryl bromide in the presence of ultrasound

Ultrasonic irradiation was found to promote the Ullman coupling of picryl bromide at or below room temperature. In the presence of excess copper, a long-lived intermediate is formed that is quenched upon work-up affording variable mixtures of trinitrobenzene and picric acid.

Synthesis of Polynitro-Substituted 2'-Nitrobiphenyl-2-amines, Analogues of Polynitro Benzocinnoline Oxide Derivatives

2',3,4',5- and 2',3,5,6'-Tetranitrobiphenyl-2-amines, and 2',3,4',5,6'- and 2',4,4',6,6'-pentanitrobiphenyl-2-amines, have been synthesized for the first time, along with the known 2,4,8- and 2,4,10-trinitrobenzocinnoline 6-oxides and 1,3,7,9-tetranitrobenzocinnoline 5-oxide.The benzocinnoline oxide derivatives were found to have higher densities and thermal stability than those of the corresponding biphenylamines.These observations are discussed in terms of structure.

SYNTHESIS OF POLYNITRO-SUBSTITUTED 2-CARBOXYBIPHENYLS

Methods were developed for the synthesis of polynitro-substituted 2-carboxybiphenyls.During the nitration of 2-carboxybiphenyl under rigorous conditions or during the heating of nitro-substituted 2-carboxybiphenyls in concentrated sulfuric acid or high-strength oleum decarboxylation and cyclization occur with the formation of nitro-substituted biphenyls and fluorenone.