4-Hydroxybenzenesulfonic acid

CAS No.：98-67-9

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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4-Hydroxybenzenesulfonic acid Basic information

Product Name:	4-Hydroxybenzenesulfonic acid
Synonyms:	4-hydroxy-benzenesulfonicaci;4-Hydroxyphenylsulfonic acid;4-hydroxyphenylsulfonicacid;4-Phenolsulfonic acid;4-phenolsulfonicacid;Benzenesulfonic acid, p-hydroxy-;ARADUR 5003-1 BD;p-hydoroxybenzenesulfonic acid
CAS:	98-67-9
MF:	C6H6O4S
MW:	174.17
EINECS:	202-691-6
Product Categories:	Intermediates of Dyes and Pigments;Organic acids
Mol File:	98-67-9.mol

4-Hydroxybenzenesulfonic acid Chemical Properties

Melting point	52 °C
Boiling point	275.14°C (rough estimate)
density	1.337 g/mL at 25 °C
vapor pressure	69.8Pa at 20℃
refractive index	n20/D 1.489
form	Liquid
pka	9.11(at 25℃)
color	White to Light yellow to Light red
Specific Gravity	1.337
Water Solubility	Soluble in water.
Merck	14,7246
BRN	1869034
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey	FEPBITJSIHRMRT-UHFFFAOYSA-N
LogP	0.41 at 25℃
CAS DataBase Reference	98-67-9(CAS DataBase Reference)
NIST Chemistry Reference	Benzenesulfonic acid, 4-hydroxy-(98-67-9)
EPA Substance Registry System	p-Phenolsulfonic acid (98-67-9)

Safety Information

Hazard Codes	C
Risk Statements	34-68
Safety Statements	26-36/37/39-45
RIDADR	UN 2586 8/PG 3
WGK Germany	-
RTECS	DB6970000
TSCA	Yes
HazardClass	8
PackingGroup	III
HS Code	29089990
Hazardous Substances Data	98-67-9(Hazardous Substances Data)

MSDS Information

Provider	Language
SigmaAldrich	English

4-Hydroxybenzenesulfonic acid Usage And Synthesis

Chemical Properties	yellowish oily liquid
Uses	4-Hydroxybenzenesulfonic Acid is used as a redox-mediator in the laccase-catalyzed degradation of indigo, a textile dye. Also used in oilfield chemicals, metal working, and as a polymerization catalyst.
Definition	ChEBI: An arenesulfonic acid that is phenol substituted by a sulfo group at C-4.
Flammability and Explosibility	Nonflammable

4-Hydroxybenzenesulfonic acid Preparation Products And Raw materials

Preparation Products

Sulfur-->PHENOL-FORMALDEHYDE RESIN-->Polyester resin paint-->conductive coating-composite system of acrylic copolymer and cuprous iodide-->Epoxy coal tar pitch anticorrosive coating-->SULFORHODAMINE B-->Epoxy zinc rich primer-->high strength adhesive HF-685-->piling adhesive YH-891-->synthetic tanning agent HV-->Epoxy polyester powder coating,mixed type-->Direct Red 243-->high temperatures structure adhesive TS812-->DAD-24 adhesive-->polyurethane adhesive for dry laminating-->high strength adhesive TS802-->rubber-asphalt cold gluing waterproof paint-->high temperature sealing putty TS747-->adhesive for ceramics and glass-->DAD-40 conductive adhesive-->high temperatures repair putty TS767-->Epoxy powder coating-->Self-crosslinking vinyl acetate copolymer latex VNA-->molding sand binder

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