(E)-1,2-Dicyanoethylene
[CAS# 764-42-1]

Identification

• Classification: Chemical reagent >> Organic reagent >> Cyanide/nitrile
• Name: (E)-1,2-Dicyanoethylene
• Synonyms: (E)-2-Butenedinitrile; Fumaric dinitrile; Fumaric nitrile; Fumarodinitrile; NSC 17555; trans-1,2-Dicyanoethene; trans-1,2-Dicyanoethylene; trans-Butenedinitrile; trans-Dicyanobutene; trans-Dicyanoethylene
• Molecular Formula: C₄H₂N₂
• Molecular Weight: 78.07
• CAS Registry Number: 764-42-1
• EC Number: 212-122-3

Properties

• Solubility: Soluble (43 g/L) (25 °C), Calc.^*
• Density: 1.249 g/cm³ (20 °C)^**
• Melting point: 98 °C^***
• Boiling point: 186 °C^****
• Refractive index: 1.4920 (589.3 nm 20 °C)^**
• Flash point: 82.6±13.7 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Kosyrev, Yu. M.

^*** FR 1514606 1968.

^**** Keiser, E. H.

Safety Data

• Hazard Symbols: T
• Risk Statements: R23/25
• Safety Statements: S36/37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	3	H301
Acute toxicity	Acute Tox.	3	H331
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	3	H311

• Transport Information: UN 3439 6.1 / PGIII