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Hot sale 99% Purity Pharmaceutical Mebendazole white Powder CAS 31431-39-7

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CAS No.:

31431-39-7

Grade:

Veterinary drug grade

Content:

99%

Port:

上海

Brand:

HNB

Packaging:

1kg/bag, 25kg/drum or as request

Price valid (until):

2026-04-03

Contact Supplier

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HNB Biotech

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Ivermectin,Active pharmaceutical ingredients,Cosmetics material,Chemical intermediate,Nootropic,Food additive

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Mebendazole (CAS number: 31431-39-7) is a broad-spectrum insecticide and belongs to the benzimidazole class of derivatives. This product is a white or off white, odorless or almost odorless crystalline powder that is almost insoluble in water and soluble in organic solvents such as . It has high purity and stable chemical properties, and is a key active pharmaceutical ingredient (API) for the preparation of deworming drugs. Its quality must comply with international standards such as the Chinese Pharmacopoeia, the United States Pharmacopeia (USP), or the European Pharmacopoeia (EP), and ensure the safety and effectiveness of the drug through strict production processes and quality control.

Mebendazole is a broad-spectrum anthelmintic. In vivo or in vitro tests have proved that it can directly inhibit the nematodes' glucose uptake, leading to glycogen depletion and making it unable to survive. It has significant effects on killing larvae and inhibiting the development of eggs. , But does not affect the blood sugar level in the human body. It can be used to control intestinal parasitic diseases such as hookworms, roundworms, pinworms, whipworms, and fecal gyrus.

Items	Specifications
Product Name	Mebendazole
CAS	31431-39-7
MF	C16H13N3O3
MW	295.29295.29
Appearance	White to light yellow powder

COA

Items	Specification	results
Characteristic	A white or almost white powder	white powder
Solubility	Practically insoluble in water,in alcohol ,It shows polymorphism	conforms
Infrared Absorption	Comform to the spectrum obtained from Mebendazole RS.	conforms
Related substances	Impurity G not more than 0.5%	<0.05%
	Any other individual impurity not more than 0.25%	<0.05%
	Total impurities not more than 1.0%	<0.05%
Loss on drying	Not more than 0.5%	0.06%
Residue on ignition	Not more than 0.1%	0.06%
Partical size distribution	Particals smaller than 20um should be no less than 90%	conforms
Assay	It contains not less than 99.0% and not more than 101.0% of C16H13N3O3 calculated on the dried basis	99.80%
Conclusion	The quality of the above commodity complies

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Our Company

Xi'an Harmonious Natural Bio- Technology Co., Ltd was founded in 2017, and located in Xlan International Logistics Industrial Zone, Xran City. ShaanxtProvince, China. Now it is the leading researcher and one of the biggest manufacturer in high technology APl area.

There are 8 experts in our research team. We insistin innovation and produce high quality products. And GMP standard workshop and complete stainlessextraction equipment.

We have 2 sales deparments over 20 people and sellour products allover the word. We also have strong professional research and developmentteamtalented personnel and completely equipped laboratoy for the quality controlling. Various Detection Device is equipped in HNB company, such as HPLCGC, Spectrophotometer, AAS, Polarimeter, Auto titrators, BOD Incubators, COD Incubators, Melting point apparatus and so on
HNB mainly engaged in export of products incuding,wthoutlimitation., pharmaceutical raw materials both for vet and human, also Vitamins, Amino Acidsminerals, peptides, plant extract, feed and food additives. Our company's business is based on Honest, Trustwortly, Constanty to Go Beyond andAchieve Mutual Win. Sincerely hope to strengthen exchanges and cooperation with friends from both home and abroad.
Passion to innovate, Power to deliver !

Our Advantages

1. Can provide high quality and competitive price.

2. Free samples for your evaluation.

4. We will inform you all the information of each stage in advance.

5. Packaging can be customized.

6. Respond at the first time before and after sale.

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Certificates

Basic Info

Product Name:

Mebendazole

Other Name:

Carbamic acid,N-(6-benzoyl-1H-benzimidazol-2-yl)-,methyl ester;2-Benzimidazolecarbamic acid,5-benzoyl-,methyl ester;Carbamic acid,(5-benzoyl-1H-benzimidazol-2-yl)-,methyl ester;Mebendazole;Methyl 5-benzoyl-2-benzimidazolecarbamate;R 17635;Methyl 5-benzoyl-2-benzimidazolylcarbamate;(5-Benzoyl-1H-benzimidazol-2-yl)carbamic acid methyl ester;5-Benzoyl-2-benzimidazolecarbamic acid methyl ester;Pantelmin;Telmin;Vermox;Mebenvet;Ovitelmin;Besantin;NSC 184849;Verpanyl;Mebex;Equivurm Plus;Vermirax;Bantenol;Noverme;Lomper;Vermicidin;Zhihuanqing;Vermoxine;52776-90-6

CAS No.:

31431-39-7

Molecular Formula:

C16H13N3O3

InChIKeys:

InChIKey=OPXLLQIJSORQAM-UHFFFAOYSA-N

Molecular Weight:

295.29

Exact Mass:

295.29

EC Number:

250-635-4

UNII:

81G6I5V05I

NSC Number:

757838|184849

DSSTox ID:

DTXSID4040682

NCI Thesaurus Code:

C47595

Color/Form:

Off-white amorphous powder|Crystals from acetic acid and methanol

ATC Code:

P02CA01|P - Antiparasitic products, insecticides and repellents

HScode:

29339900

Categories:

Veterinary Raw Materials

Characteristics

PSA:

84.1

XLogP3:

2.8

Appearance:

Mebendazole is a white to slightly yellow powder. Pleasant taste. Practically water insoluble. (NTP, 1992)

Density:

1.38 g/cm³

Melting Point:

288.5 °C

Refractive Index:

1.702

Water Solubility:

35.4mg/L(25 ºC)

Storage Conditions:

0-6°C

Vapor Pressure:

5.3X10-11 mm Hg at 25 deg C (est)

Toxicity:

LD50 orally: >80 mg/kg in sheep; >40 mg/kg in mice, rats and chickens (Van Gelder)

Taste:

NOT UNPLEASANT

Henrys Law Constant:

Henry's Law constant = 5.4X10-16 atm-cu m/mol at 25 °C (est)

Dissociation Constants:

pKa = 6.6 (double-bonded nitrogen) (est)

Collision Cross Section:

171.2 Å² [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]|174.4 Å² [M+H]+ [CCS Type: TW, Method: calibrated with Waters Major Mix]|187.8 Å² [M+Na]+ [CCS Type: TW, Method: calibrated with Waters Major Mix]

Experimental Properties:

Hydroxyl radical reaction rate constant = 1.4X10-10 cu cm/molecule-sec at 25 °C (est)

Air and Water Reactions:

Insoluble in water.

Reactive Group:

Carbamates

Reactivity Profile:

MEBENDAZOLE is a carbamate ester-amine. Amines behave as chemical bases. Carbamates are chemically similar to, but more reactive than amides. Like amides they form polymers such as polyurethane resins. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Flammable gaseous hydrogen is produced by the combination of active metals or nitrides with carbamates. Strongly oxidizing acids, peroxides, and hydroperoxides are incompatible with carbamates.

See More Mebendazole Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth.
Storage	none
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

Commercially available mebendazole chewable tablets should be stored at 15-25 deg C in well-closed containers .

See More Mebendazole Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Ivermectin,Active pharmaceutical ingredients,Cosmetics material,Chemical intermediate,Nootropic,Food additive

Location:
6 floor Baoyilongji Building B Weiyang Area, Fengcheng 8 Road, Xi'an city, Shaanxi, 710000, China

Payment Terms:
L/C,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
7

Total Annual Revenue:
$5 million-$10 million

Total Employees:
51-100

Year of Establishment:
2017

Certifications:
ISO,ISO

Xi'an Harmonious Natural Bio-Technology Co., Ltd. was founded in 2010, and located in Xian

International Logistics Industrial Zone, Xi'an City, Shaanxi Province, China. Now it is the

leading researcher and one of the biggest manufacturer in high technology API area.

There are 8 experts in our research team. We insist in innovation and produce high quality

products. And GMP standard workshop and complete stainless extraction equipment.

We have 2 sales departments over 20 people and sell our products all over the world.

We also have strong professional research and development team, talented personnel and

completely equipped laboratory for the quality controlling. Various Detection Device is

equipped in HNB company, such as HPLC, GC, Spectrophotometer, AAS, Polarimeter, Auto

titrators, BOD Incubators, COD Incubators, Melting point apparatus and so on.

HNB mainly engaged in export of products including, without limitation, pharmaceutical raw

materials both for vet and human, also Vitamins, Amino Acids, minerals, peptides, plant

extract, feed and food additives.

Our company's business is based on Honest, Trustworthy, Constantly to Go Beyond and

Achieve Mutual Win. Sincerely hope to strengthen exchanges and cooperation with friends

from both home and abroad.

Passion to innovate, Power to deliver !

Inquiry History

19 Inquiries

Country	Product	Purchase Quantity	Date Posted
Paraguay	Mebendazole	100 KG	Nov 4, 2025
United States	Mebendazole Polymorph C	1 KG	Jul 15, 2025
Poland	mebendazol	1 KG	May 27, 2024
Sri Lanka	Mebendazole USP 47 / USP 48	500 KG	Jun 19, 2026
United States	Mebendazole	1 KG	Dec 23, 2024
Poland	Fenbendazole	1 KG	Jul 14, 2026
Paraguay	Lanolin	100 KG	Nov 4, 2025
Paraguay	Azepromacine maleate	10 KG	Oct 27, 2025
Paraguay	Cefalexin compacted micronized	200 KG	Oct 27, 2025
Paraguay	Choline chloride	200 KG	Oct 27, 2025
Paraguay	Doramectina	60 KG	Oct 27, 2025
Paraguay	Almidon pre-gelatinizado	300.00 KG	Dec 1, 2025
Paraguay	Ceftiofur hcl	25.00 KG	Dec 1, 2025
Paraguay	Dichloromethane	5000.00 KG	Dec 1, 2025
Paraguay	Pyrantel pamoate	75.00 KG	Dec 1, 2025
Paraguay	Azepromacine maleate	12.00 KG	Dec 1, 2025
Paraguay	D.D.V.P.technical	16000.00 KG	Dec 1, 2025
Paraguay	Ricini oluem Aceite de ricino	1600 KG	Dec 1, 2025
Paraguay	Vitamin B12	3.00 KG	Dec 1, 2025

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