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Pyrvinium pamoate,3546-41-6

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CAS No.:

3546-41-6

Grade:

Industrial Grade

Content:

98%

Port:

xi'an

Packaging:

1KG/BAG

Price valid (until):

2026-06-06

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Shaanxi Dideu Medichem Co. Ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Pyrvinium pamoate (CAS 3546-41-6) is an FDA-approved anthelmintic commonly used to treat pinworm infections. It has also been extensively studied in scientific research as a Wnt signaling pathway inhibitor, possessing potential anticancer activity. It appears as a red to orange-red powder with a melting point of approximately 210–215°C. It is insoluble in water but generally soluble in DMSO.

🧪 Basic Physicochemical Properties

Molecular Formula: C₇₅H₇₀N₆O₆

Molecular Weight: 1151.39 g/mol

Appearance: Red or orange-red powder, almost odorless

Melting Point: 210–215°C (begins to soften at 190°C)

Boiling Point: Approximately 829°C (estimated)

Density: Approximately 1.01 g/cm³ (estimated)

⚙️ Chemical Uses and Applications

1. Pharmaceutical Uses

Antidote: FDA approved for the treatment of enterobius vermicularis infection.

2. Laboratory Studies: Used as an intermediate in research.

Items	Specifications

ECHEMI Editorial Reference

Pyrvinium pamoate is an FDA-approved antihelmintic drug that inhibits WNT pathway signaling.

Basic Info

Product Name:

Pyrvinium pamoate

Other Name:

Quinolinium,6-(dimethylamino)-2-[2-(2,5-dimethyl-1-phenyl-1H-pyrrol-3-yl)ethenyl]-1-methyl-,4,4′-methylenebis[3-hydroxy-2-naphthalenecarboxylate] (2:1);Quinolinium,6-(dimethylamino)-2-[2-(2,5-dimethyl-1-phenyl-1H-pyrrol-3-yl)ethenyl]-1-methyl-,salt with 4,4′-methylenebis[3-hydroxy-2-naphthalenecarboxylic acid] (2:1);Quinolinium,6-(dimethylamino)-2-[2-(2,5-dimethyl-1-phenylpyrrol-3-yl)vinyl]-1-methyl-,salt with 4,4′-methylenebis[3-hydroxy-2-naphthoic acid] (2:1);Bis[6-(dimethylamino)-2-[2-(2,5-dimethyl-1-phenylpyrrol-3-yl)vinyl]-1-methylquinolinium] 4,4′-methylenebis[3-hydroxy-2-naphthoate];2-Naphthoic acid,4,4′-methylenebis[3-hydroxy-,ion(2-),bis[6-(dimethylamino)-2-[2-(2,5-dimethyl-1-phenylpyrrol-3-yl)vinyl]-1-methylquinolinium];2-Naphthalenecarboxylic acid,4,4′-methylenebis[3-hydroxy-,ion(2-),bis[6-(dimethylamino)-2-[2-(2,5-dimethyl-1-phenyl-1H-pyrrol-3-yl)ethenyl]-1-methylquinolinium];Povan;Pyrvinium pamoate;6-Dimethylamino-2-[2-(2,5-dimethyl-1-phenyl-3-pyrryl)vinyl]-1-methylquinolinium salt of 2,2′-dihydroxy-1,1′-dinaphthylmethane-3,3′-dicarboxylic acid;Pyrvinium embonate;Viprynium embonate;Alnoxin;Molevac;Neo-Oxypaat;Pamovin;Povanyl;Tru;Vanquin;Pyrcon;Altolat;Tolapin;Povanil;Poquil;Vermitibier;NSC 223622;7491-56-7;54366-18-6

CAS No.:

3546-41-6

Molecular Formula:

C26H28N3.¹/2C23H14O6

InChIKeys:

InChIKey=ZFWFZMYQXOKWIY-UHFFFAOYSA-L

Molecular Weight:

1151.39

Exact Mass:

1150.536

EC Number:

222-596-3

HScode:

2933492250

Categories:

Organic Reagents

Characteristics

PSA:

145

Appearance:

red

Density:

1.0104 (rough estimate)

Melting Point:

210-215 °C

Refractive Index:

1.6400 (estimate)

Water Solubility:

DMSO: >10mg/mL

Storage Conditions:

room temp

See More Pyrvinium pamoate Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Acute toxicity - Category 4, Dermal

Skin irritation, Category 2

Eye irritation, Category 2

Acute toxicity - Category 4, Inhalation

Specific target organ toxicity â single exposure, Category 3

Carcinogenicity, Category 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed H312 Harmful in contact with skin H315 Causes skin irritation H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H351 Suspected of causing cancer
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P203 Obtain, read and follow all safety instructions before use.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P317 Get medical help. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse. P332+P317 If skin irritation occurs: Get medical help. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell. P318 IF exposed or concerned, get medical advice.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

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 Pyrvinium pamoate Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst

Location:
https://www.dideu.com/en/

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
7

Total Annual Revenue:
Above $100 million

Total Employees:
Above 1000

Year of Establishment:
2016

Certifications:
ISO Certificate,REACH

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Inquiry History

1 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Pyrvinium pamoate	500 G	May 6, 2026

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