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PHR2082 Supelco

Pyrantel Impurity B

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym: (E)-N-[3-(Methylamino)propyl]-3-thiophen-2-yl)prop-2-enamide hydrochloride

  • CAS Number 36700-39-7 (free base)

  • Empirical Formula (Hill Notation) C11H16N2OS · HCl

  • Molecular Weight 260.78

  •  NACRES NA.24



Related Categories Analytical Standards, Analytical/Chromatography, P-S, Pharmaceutical Secondary Standards, Pharmacopeia & Metrological Institutes Standards More...
grade   certified reference material
  pharmaceutical secondary standard
packaging   pkg of 50 mg
format   neat


General description

Pyrantel Impurity B is an impurity of the broad-spectrum anthelminthic drug, pyrantel. Pyrantel is a medication, commonly indicated for the treatment of intestinal nematodes. Its mode of action involves the interference with ganglionic neurotransmission via blocking of the acetylcholine receptors and other sites, which in turn leads to paralysis of the parasites.


These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.


To see an example of a Certificate of Analysis for this material enter LRAB9057 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis (COA)

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Peer-Reviewed Papers


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