... Name Butanedioic acid, dimethylester, polymer with 4-hydroxy -2,2,6,6-tetramethyl-1-piperidine ethanol.CAS Number 65447-77-0Structure YS ... powder, odorlessPH-value (1% suspension in water 20~25°C) 6.3Melting / freezing temperature 50~70°C (softening range)Boiling point ... 1.6mg/LVapor pressure (20°C) 2.5 E-6 PaPartition coefficient (Log Pow, 20~25°C) 5.2Explosive properties not tested ...