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Sodium p-styrenesulfonate CAS:2695-37-6

Name: Sodium p-styrenesulfonate CAS:2695-37-6
Brand: Orient
SKU: pr2511281650
Price: 10 USD
Availability: InStock

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CAS No.:

2695-37-6

Grade:

Industrial Grade

Content:

99%

Port:

SHANGHAI

Brand:

Orient

Packaging:

25kg/bag,500kg/bag, customized

Price valid (until):

2025-12-28

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Qingdao Orient Chemical Co.,LTD

Company Type:

Trader

Location:

China

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Main Products:

pharmaceutical intermediates,peptides,electronic chemicals

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Product Description
Seller Information
Inquiry History

Description

Sodium p-styrenesulfonate Basic information

Chemical Reactivity Application

Product Name:	Sodium p-styrenesulfonate
Synonyms:	Styrene-4-sulfonic acid sodiuM salt hydrate, tech. 90%;SodiuM p-styrenesulf;SodiuM 4-vinylbenzenesulfonate hydrate;SodiuM 4-vinylbenzenesulfon;p-Sodium styrenesulfonate;Sodium p-styrenesulfonate ,95%;p-Vinylbenzenesulphonic acid sodium salt hydrate, tech. 90%;Styrene sulfonate
CAS:	2695-37-6
MF:	C8H7NaO3S
MW:	206.19
EINECS:	220-266-3
Product Categories:	Aromatic Esters;bc0001
Mol File:	2695-37-6.mol

Sodium p-styrenesulfonate Chemical Properties

Melting point	151-154 °C
Boiling point	111-112 °C
density	1.043 g/mL at 25 °C
vapor pressure	0Pa at 25℃
refractive index	n20/D 1.387
Fp	78 °F
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
form	Powder
color	White
Water Solubility	Soluble in water.
Hydrolytic Sensitivity	0: forms stable aqueous solutions
BRN	3575931
Stability:	Stable. Incompatible with strong oxidizing agents.
InChIKey	XFTALRAZSCGSKN-UHFFFAOYSA-M
LogP	-3.44 at 24℃
CAS DataBase Reference	2695-37-6(CAS DataBase Reference)
EPA Substance Registry System	Benzenesulfonic acid, 4-ethenyl-, sodium salt (2695-37-6)

Safety Information

Hazard Codes	Xn,Xi
Risk Statements	22-36/37/38-41-37/38-37-20/22-10
Safety Statements	26-36/37-36-36/37/39-39
WGK Germany	3
F	8-23
TSCA	Yes
HS Code	29049090

Sodium p-styrenesulfonate Usage And Synthesis

Chemical Reactivity	Sodium p-styrenesulfonate (NaSS) is a functional monomer having a radical polymerizable vinyl group, a hydrophobic benzene ring having π electrons, and a sulfonic acid (salt) group that is a strong electrolyte and has been valued in various industrial fields. With the inductive effect of sulfo radical on the para position against vinyl group, sodium p-styrenesulfonate (NaSS) possesses the highest reactivity (polymerization activity) among all sulfonated vinyl monomers. It performs radical polymerization in such polar solvents as DMF, DMSO and water using common or redox polymerization initiators. For example, it has been used as a reactive emulsifier in order to improve stability of an emulsion and water resistance or cationic dye dyeability of a (emulsion) polymer.
Application	Sodium p-styrenesulfonate has been used as a reactive emulsifier in order to improve stability of an emulsion and water resistance or cationic dye dyeability of a (emulsion) polymer. Further, a polymer or a copolymer of sodium p-styrenesulfonate has been used as a dispersant for producing various aqueous dispersions of pigments, antioxidants, various polymers (tackifier resins, chloroprene rubber, polyacrylic acid esters, polyesters, styrene-butadiene copolymers, polyvinyl chloride, poly-acrylonitrile, polysilicones, conductive polymers and the like), nanocarbon materials, silica particles for hot forging release agents or abrasives, battery electrode materials (carbon, lithium iron phosphate, lithium manganese phosphate and the like), photographic silver halides and the like. Furthermore, the polymer of sodium p-styrenesulfonate has been utilized as synthetic starch for clothing finishing such as an ironing agent, a hair care product, an antistatic agent, a resist acid generator, a water treatment agent, an allergen scavenger, an ion-exchange resin, a plating solution additive, a detergent for production of semiconductors and hard disks, an additive to fluids for shale oil drilling and a flame retardant for resins.
Chemical Properties	white to light beige powder
Uses	Styrene-4-sulfonic acid sodium salt is grafted on poly(ethersulfone) membrane to determine the fractionation of proteins with similar molecular weights. It is used as sodium based ion exchange membranes for membrane capacitive deionization (MCDI) for synthesis. It is used in the study of copolymerization characteristics of sodium styrenesulfonate.

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—— Q&A ——

Q1:Do you provide sample?

A: Yes, we can provide free sample, you only need pay the shipping cost.

Q2: What is the lead time?

A: For stock goods, it usually take about 5-7 days by air, 15-30 days by sea,For customized products, the delivery time needs to be confirmed based on the actual situation.

Q3: How can I buy? What is the payment method?

A: You can contract us through Email or you can browse our website:orientchem.cc, we have bank transfer,

A：We attach great importance to after-sales service of our products. If there are any quality issues, please contact us within 30 days of receiving the goods and we will handle returns and exchanges for you.

Certificates

Basic Info

Product Name:

Sodium 4-styrenesulfonate

Other Name:

Benzenesulfonic acid,4-ethenyl-,sodium salt (1:1);Benzenesulfonic acid,p-vinyl-,sodium salt;Benzenesulfonic acid,4-ethenyl-,sodium salt;Sodium p-styrenesulfonate;Sodium 4-vinylbenzenesulfonate;Sodium 4-styrenesulfonate;Spinomar NaSS;Styrene-4-sulfonic acid sodium salt;Sodium p-vinylbenzenesulfonate;UNASS;p-Vinylphenylsulfonic acid sodium salt;MS 88;p-Vinylbenzene sulfonic sodium salt;p-Styrenesulfonic acid sodium salt;Sodium (4-vinylphenyl)sulfonate;79394-65-3;143201-62-1;1394847-92-7;1622331-29-6

CAS No.:

2695-37-6

Molecular Formula:

C8H8O3S.Na

InChIKeys:

InChIKey=OMSKWMHSUQZBRS-UHFFFAOYSA-N

Molecular Weight:

206.19

Exact Mass:

206.001358

BRN:

3575931

EC Number:

220-266-3

UNII:

0KP0V3OG5G

DSSTox ID:

DTXSID7044635

HScode:

2904100000

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

65.6

XLogP3:

2.31450

Appearance:

White Powder

Density:

1.043 g/mL at 25 °C

Melting Point:

300 °C

Boiling Point:

111-112 °C

Flash Point:

78 °F

Refractive Index:

n20/D 1.387

Water Solubility:

soluble in water.

See More Sodium 4-styrenesulfonate Properties 

Hazard Identification

Classification of the substance or mixture

Skin irritation, Category 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H315 Causes skin irritation H319 Causes serious eye irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse.
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Sodium 4-styrenesulfonate Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

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We are mainly specilized in supply of pharmaceutical intermediates, electronic chemicals，food additives, and other fine chemical products.
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Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

4 Inquiries

Country	Product	Purchase Quantity	Date Posted
Spain	Nass Sodium P-Styrenesulfonate	18 MT	Nov 7, 2025
France	Sodium p-Styrenesulfonate	1 MT	May 6, 2026
Spain	Sodium p-Styrenesulfonate	6000 KG	Dec 2, 2025
Spain	NaSS Sodium p-styrenesulfonate	18 MT	Nov 7, 2025

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Sodium p-styrenesulfonate CAS:2695-37-6

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