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Parbendazole

Also known as: Methyl (5-butyl-1H-benzimidazol-2-yl)carbamate, Methyl (5-butyl-1H-benzo[d]imidazol-2-yl)carbamate, Methyl (5-butyl-1H-benzoimidazol-2-yl)carbamate, Carbamic acid, N-(5-butyl-1H-benzimidazol-2-yl)-, methyl ester, SK&F 29044, Helmatac, Verminum, PBDZ, Methyl5-butyl-2-benzimidazolecarbamate, TCMDC-131798

Parbendazole (CAS 14255-87-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H17N3O2 and a molecular weight of 247.293 g/mol. Key properties include a melting point of 255-257°C and a density of 1.2±0.1 g/cm3. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14255-87-9
Jingsj CID
J-32740-6
Molecular Formula
C13H17N3O2
Molecular Weight
247.293 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point255-257°C
Density1.2±0.1 g/cm3
Exact Mass247.132080
PSA67.01000
LogP3.57
Refractive Index1.632
StabilityStable. Incompatible with strong oxidizing agents.
Additional Property<0.1 g/100 mL at 18 ºC

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H361 — Suspected of damaging fertility or the unborn child

Activity & Biological Data

TargetEC50: 8.79 nM (tubulin)[1]
Additional Information[1]. Lo YC, et al. Computational Cell Cycle Profiling of Cancer Cells for Prioritizing FDA-Approved Drugs with Repurposing Potential. Sci Rep. 2017 Sep 12;7(1):11261. [2]. Lo YC, et al. Computational Cell Cycle Profiling of Cancer Cells for Prioritizing FDA-Approved Drugs with Repurposing Potential. Sci Rep. 2017 Sep 12;7(1):11261. [3]. Havercroft JC, et al. Binding of parbendazole to tubulin and its influence on microtubules in tissue-culture cells as revealed by immunofluorescence microscopy. J Cell Sci. 1981 Jun;49:195-204. [4]. Havercroft JC, et al. Binding of parbendazole to tubulin and its influence on microtubules in tissue-culture cells as revealed by immunofluorescence microscopy. J Cell Sci. 1981 Jun;49:195-204. [5]. Foster KE, et al. A mutant beta-tubulin confers resistance to the action of benzimidazole-carbamate microtubule inhibitors both in vivo and in vitro. Eur J Biochem. 1987 Mar 16;163(3):449-55. [6]. Foster KE, et al. A mutant beta-tubulin confers resistance to the action of benzimidazole-carbamate microtubule inhibitors both in vivo and in vitro. Eur J Biochem. 1987 Mar 16;163(3):449-55.

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 Parbendazole?

The CAS number of Parbendazole is 14255-87-9.

What are the molecular formula and molecular weight of Parbendazole?

Parbendazole has molecular formula C13H17N3O2 and molecular weight 247.293 g/mol.

Is Parbendazole hazardous?

Parbendazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H361 — Suspected of damaging fertility or the unborn child.

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

Last updated:

How to cite: Jingsj. "Parbendazole (CAS 14255-87-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32740-6 (accessed 2026-11-07).

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