18.46
H5-H19-H5-H5
P1-P-P4-P41-P4-P4-P61-P64-P71-P8-P+P61+P5-P4+P4-P5+P51+P8-P7+P78-P4+P-P4+P5-P45-P51
GHS,GHS7,GHS8
质量 (g) = 浓度 (mol/L) × 体积 (L) × (g/mol)