98-66-8

Name 4-Chlorobenzenesulfonic acid
CAS 98-66-8
EINECS(EC#) 202-690-0
Molecular Formula C6H5ClO3S
MDL Number MFCD00065342
Molecular Weight 192.62
MOL File 98-66-8.mol
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Chemical Properties

Appearance greyish-beige flaked solid
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
Stability: Stable. Incompatible with strong oxidizing agents.
Water Solubility  very faint turbidity
Merck  2122
InChI 1S/C6H5ClO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,(H,8,9,10)
InChIKey RJWBTWIBUIGANW-UHFFFAOYSA-N
SMILES OS(=O)(=O)c1ccc(Cl)cc1
CAS DataBase Reference 98-66-8(CAS DataBase Reference)
NIST Chemistry Reference 4-Chlorobenzene sulfonic acid(98-66-8)
EPA Substance Registry System 98-66-8(EPA Substance)

Safety Data

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H314
Precautionary statements  P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338
Hazard Codes  C
Risk Statements 
R34:Causes burns.
R22:Harmful if swallowed.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S24/25:Avoid contact with skin and eyes .
RIDADR  UN 2583 8/PG 2
WGK Germany  3
RTECS  DB5074000
TSCA  TSCA listed
REACH Registrations Active
HazardClass  8
PackingGroup  III
HS Code  29041000
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Acute Tox. 4 Oral
Skin Corr. 1B

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Hazard Information

Material Safety Data Sheet(MSDS)

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