Description Catalogue Number 805792 Synonyms 2-Methyl-2-propenamide Description Methacrylamide Product Information CAS number 79-39-0 EC number 201-202-3 Hill Formula C₄H₇NO Chemical formula CH₂=C(CH₃)CONH₂ Molar Mass 85.11 g/mol HS Code 2924 19 00 Structure formula Image Applications Application Methacrylamide for synthesis. CAS 79-39-0, EC Number 201-202-3, chemical formula CH₂=C(CH₃)CONH₂. Physicochemical Information Boiling point 215 °C (1013 hPa) Explosion limit 2 - 15 %(V) Ignition temperature 510 °C Melting Point 106 - 112 °C pH value 7.1 (100 g/l, H₂O, 20 °C) Vapor pressure 0.0015 hPa (20 °C) Bulk density 550 kg/m3 Solubility 202 g/l Toxicological Information LD 50 oral LD50 Rat 1815 mg/kg LD 50 dermal LD50 Rat > 5000 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H302: Harmful if swallowed. Precautionary Statement(s) P262: Do not get in eyes, on skin, or on clothing. RTECS UC6475000 Storage class 10 - 13 Other liquids and solids WGK WGK 1 slightly water endangering Disposal 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. Safety Information Hazard Symbols Harmful Categories of danger harmful R Phrase R 22 Harmful if swallowed. S Phrase S 25 Avoid contact with eyes. Storage and Shipping Information Storage Store below +30°C. Specifications Assay (GC, area%) ≥ 99.0 % (a/a) Melting range (lower value) ≥ 109 °C Melting range (upper value) ≤ 111 °C Identity (IR) passes test