Melting point :102 °C
Boiling point :149 °C/22 mmHg (lit.)
Density :1.449 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :Chloroform (Slightly), Methanol (Sparingly)
form :solid
pka :-0.83±0.50(Predicted)
color :White to Light yellow to Light orange
Water Solubility :very faint turbidity
Merck :14,2122
Stability :Stable. Incompatible with strong oxidizing agents.
InChIKey :RJWBTWIBUIGANW-UHFFFAOYSA-N
CAS DataBase Reference :98-66-8(CAS DataBase Reference)
NIST Chemistry Reference :4-Chlorobenzene sulfonic acid(98-66-8)
EPA Substance Registry System :Benzenesulfonic acid, 4-chloro- (98-66-8)

Symbol(GHS):
Signal word:	Danger
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 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:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.