Mebendazole

Also known as: Vermox, Methyl (5-benzoyl-1H-benzimidazol-2-yl)carbamate, (5-Benzoyl-1H-benzimidazol-2-yl)carbamic acid methyl ester, Methyl 5-benzoylbenzimidazole-2-carbamate, Mebex, Lomper, Telmin, Noverme, MBZ, Mebenvet, Bantenol, Besantin

Mebendazole (CAS 31431-39-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H13N3O3 and a molecular weight of 295.293 g/mol. Key properties include a melting point of 288.5°C and a density of 1.4±0.1 g/cm3. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 31431-39-7
Jingsj CID: J-1099525-1
Molecular Formula: C₁₆H₁₃N₃O₃
Molecular Weight: 295.293 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	288.5°C
Density	1.4±0.1 g/cm3
Exact Mass	295.095703
PSA	84.08000
LogP	2.83
Refractive Index	1.703

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed

Activity & Biological Data

Additional Information	[1]. Liu C, et al. In vivo and in vitro efficacies of mebendazole, mefloquine and nitazoxanide against cyst echinococcosis. Parasitol Res. 2015 Mar 15. [2]. Pawluk SA, et al. A review of pharmacokinetic drug-drug interactions with the anthelmintic medications albendazole and mebendazole. Clin Pharmacokinet. 2015 Apr;54(4):371-83. [3]. Speich B, et al. Efficacy and safety of albendazole plus ivermectin, albendazole plus mebendazole, albendazole plus oxantel pamoate, and mebendazole alone against Trichuris trichiura and concomitant soil-transmitted helminth infections: a four-arm, random [4]. Larsen AR, et al. Repurposing the antihelmintic mebendazole as a hedgehog inhibitor. Mol Cancer Ther. 2015 Jan;14(1):3-13.

Additional Information

[1]. Liu C, et al. In vivo and in vitro efficacies of mebendazole, mefloquine and nitazoxanide against cyst echinococcosis. Parasitol Res. 2015 Mar 15. [2]. Pawluk SA, et al. A review of pharmacokinetic drug-drug interactions with the anthelmintic medications albendazole and mebendazole. Clin Pharmacokinet. 2015 Apr;54(4):371-83. [3]. Speich B, et al. Efficacy and safety of albendazole plus ivermectin, albendazole plus mebendazole, albendazole plus oxantel pamoate, and mebendazole alone against Trichuris trichiura and concomitant soil-transmitted helminth infections: a four-arm, random [4]. Larsen AR, et al. Repurposing the antihelmintic mebendazole as a hedgehog inhibitor. Mol Cancer Ther. 2015 Jan;14(1):3-13.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Mebendazole?

The CAS number of Mebendazole is 31431-39-7.

What are the molecular formula and molecular weight of Mebendazole?

Mebendazole has molecular formula C16H13N3O3 and molecular weight 295.293 g/mol.

Is Mebendazole hazardous?

Mebendazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of Mebendazole?

For Mebendazole, Upstream Products: 3,4-Diaminobenzophenone monohydrochloride, 2-Amino-5-benzoylbenzimidazole.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Mebendazole (CAS 31431-39-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1099525-1 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.