Density :1.229 g/mL at 25 °C (lit.)
refractive index :n20/D 1.5331(lit.)
Flash point :>230 °F
pka :-0.45±0.50(Predicted)
Stability :Combustible. Incompatible with strong oxidizing agents, strong bases.
InChI :InChI=1S/C8H10O3S/c1-2-7-3-5-8(6-4-7)12(9,10)11/h3-6H,2H2,1H3,(H,9,10,11)
InChIKey :BRIXOPDYGQCZFO-UHFFFAOYSA-N
SMILES :C1(S(O)(=O)=O)=CC=C(CC)C=C1
CAS DataBase Reference :98-69-1(CAS DataBase Reference)
EPA Substance Registry System :Benzenesulfonic acid, 4-ethyl- (98-69-1)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P363 Wash contaminated clothing before reuse. P405 Store locked up.