55.8
P21-P2-P24-P241-P242-P24-P24-P28-P2+P52-P+P1+P5-P5+P51+P8-P2+P4-P7+P78-P4+P25-P51
GHS2,GHS7
199
质量 (g) = 浓度 (mol/L) × 体积 (L) × (g/mol)