Malononitrile
ALDRICH/690414 - Arxada quality, ≥99.0% (calculated, GC, KF)
Synonym: Dicyanomethane
CAS Number: 109-77-3
Empirical Formula (Hill Notation): C3H2N2
Molecular Weight: 66.06
EC Number: 203-703-2
MDL Number: MFCD00001883
Linear Formula: CH2(CN)2
Product Type: Chemical
| assay | ≥99.0% (calculated, GC, KF) |
| bp | 220 °C (lit.) |
| density | 1.049 g/mL at 25 °C (lit.) |
| form | liquid |
| impurities | ≤0.10% water |
| ≤0.50% (E)-2-butenedinitrile | |
| ≤0.50% (Z)-2-butenedinitrile | |
| ≤0.50% butanedinitrile | |
| InChI | 1S/C3H2N2/c4-2-1-3-5/h1H2 |
| InChI key | CUONGYYJJVDODC-UHFFFAOYSA |
| manufacturer/tradename | Arxada AG |
| mp | 30-32 °C (lit.) |
| quality | Arxada quality |
| SMILES string | N#CCC#N |
| storage temp. | 2-8°C |
| Application: | Malononitrile is an active methylene reagent useful for condensation reactions to synthesize various synthetic intermediates and heterocycles. It is extensively used in the Knoevenagel condensation with various aldehydes and ketones. Some of the reactions where malononitrile is used as a reactant are: • Synthesis of 2-pyran-4-ylidene-malonon • Synthesis of polysubstituted dihydropyridines. • Synthesis of various chromene derivatives upon treating with salicylic aldehydes. • Synthesis of triselenium dicyanide by treating it with selenium dioxide. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 10 kg in composite drum |
| Symbol |   GHS06,GHS09 |
| Signal word | Danger |
| Hazard statements | H301 + H311 + H331 - H410 |
| Precautionary statements | P273 - P280 - P301 + P310 + P330 - P302 + P352 + P312 - P304 + P340 + P311 |
| Hazard Codes | T,N |
| Risk Statements | 23/24/25-50/53 |
| Safety Statements | 23-27-45-60-61 |
| RIDADR | UN 2647 6.1 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 186.8 °F - closed cup |
| Flash Point(C) | 86 °C - closed cup |
| Purity | ≥99.0% (calculated, GC, KF) |
| bp | 220 °C (lit.) |
| mp | 30-32 °C (lit.) |
| Density | 1.049 g/mL at 25 °C (lit.) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |