33420-37-0

Basic information

• Product Name: Pyrazinetetracarbonitrile
• Synonyms: Pyrazinetetracarbonitrile;pyrazine-2,3,5,6-tetracarbonitrile;2,3,5,6-Pyrazinetetracarbonitrile;2,3,5,6-Tetracyanopyrazine;NSC 174509;Tetracyanopyrazine
• CAS NO: 33420-37-0
• Molecular Formula: C₈N₆
• Molecular Weight: 182.14168
• Mol File: 33420-37-0.mol
• Article Data: 2

Chemical Properties

• Melting Point: 274-276℃
• Boiling Point: 487.3 °C at 760 mmHg
• Flash Point: 152.9 °C
• Appearance: /
• Density: 1.55 g/cm³
• Vapor Pressure: 1.2E-09mmHg at 25°C
• Refractive Index: 1.62
• PKA: -16.19±0.10(Predicted)
• CAS DataBase Reference: Pyrazinetetracarbonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrazinetetracarbonitrile(33420-37-0)
• EPA Substance Registry System: Pyrazinetetracarbonitrile(33420-37-0)

Safety Data

• Hazardous Substances Data: 33420-37-0(Hazardous Substances Data)

Usage

General Description

Pyrazinetetracarbonitrile, also known as 2,3,5,6-tetracyanopyrazine, is an organic compound with the molecular formula C10N6H2. Pyrazinetetracarbonitrile consists of a pyrazine ring, which is a heterocyclic aromatic organic compound, with four cyano (C≡N) groups attached. Pyrazinetetracarbonitrile is used in various industries due to its ability to supply significant specific heat capacity and is considered valuable in thermal energy storage systems. It appears as a white to off-white solid substance, though it should be handled with care as it may cause eye, skin, and respiratory irritation upon exposure.

InChI:InChI=1/C8N6/c9-1-5-6(2-10)14-8(4-12)7(3-11)13-5

Upstream product

• 28321-79-1 diiminosuccinonitrile 
• 18514-52-8 2,3-diaminomaleonitrile 

Downstream Products

• 60033-71-8 6-[p-(dimethylamino)phenyl]-2,3,5-pyrazinetricarbonitrile 
• 60033-67-2 6-[4-(N-methyl-anilino)-phenyl]-pyrazine-2,3,5-tricarbonitrile 

Relevant articles and documents

Synthesis and Investigation of 2,3,5,6-Tetra-(1H-tetrazol-5-yl)pyrazine Based Energetic Materials

The structures and properties of several energetic compounds based on a high-nitrogen-content anion, namely 2,3,5,6-tetra(1H-tetrazol-5-yl)pyrazine (H4TTP) are reported here for the first time. These energetic salts were synthesized by reacting H4TTP with various alkali metal hydroxides (sodium, potassium, rubidium, caesium) and N-based (ammonia, hydrazine, hydroxylamine, guanidine carbonate, aminoguanidine bicarbonate). The resulting materials were comprehensively characterized by multinuclear (1H, 13C) NMR spectroscopy, infrared spectroscopy, elemental analysis, DSC, as well as low-temperature single-crystal X-ray diffraction. Heats of formation for the metal-free species as well as detonation parameters were calculated. The presented energetic materials (EMs) show high thermal stability (207 °C≤Tdec≤300 °C), while the metal-free ionic derivatives exhibit desirable properties such as detonation velocity (6873 m s?1≤VC-J≤8364 m s?1), detonation pressure (14.3 GPa≤pC-J≤24.9 GPa), and specific impulse (141.4≤Isp≤192.5 s).