Melting point :134-136 °C (lit.)
Boiling point :272.96°C (rough estimate)
Density :1.35
refractive index :1.4500 (estimate)
Flash point :250 °C
storage temp. :2-8°C
solubility :H₂O: 10 mg/mL at 37 °C
form :crystalline
color :white
pka :3.5(at 25℃)
biological source :synthetic
Water Solubility :3.3 g/L (20 ºC)
ε(extinction coefficient) :190 at 298nm in aqueous base at 1mM
409 at 231nm in aqueous base at 1mM
466 at 230nm in aqueous acid at 1mM
68 at 278nm in aqueous acid at 1mM Merck :14,851
BRN :779271
Henry's Law Constant :7.6×10³ mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
Exposure limits :PC-TWA:5 mg/m3
BCS Class :3
Stability :Stable. Keep dry. Incompatible with strong oxidizing agents, strong bases, strong acids, various other compounds such as iodides, iron salts, quinine salts, etc.
Cosmetics Ingredients Functions :EXFOLIATING
InChI :1S/C9H8O4/c1-6(10)13-8-5-3-2-4-7(8)9(11)12/h2-5H,1H3,(H,11,12)
InChIKey :BSYNRYMUTXBXSQ-UHFFFAOYSA-N
SMILES :CC(=O)Oc1ccccc1C(O)=O
LogP :1.190
CAS DataBase Reference :50-78-2(CAS DataBase Reference)
NIST Chemistry Reference :Benzoic acid, 2-(acetyloxy)-(50-78-2)
EPA Substance Registry System :Aspirin (50-78-2)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P501 Dispose of contents/container to..…