Title: Pyriminil
CAS Registry Number: 53558-25-1
CAS Name: N-(4-Nitrophenyl)-N¢-(3-pyridinylmethyl)urea
Additional Names: N-3-pyridylmethyl-N¢-p-nitrophenylurea; pyrinuron
Manufacturers' Codes: RH-787; DLP-787
Trademarks: Vacor (Rohm & Haas)
Molecular Formula: C13H12N4O3
Molecular Weight: 272.26
Percent Composition: C 57.35%, H 4.44%, N 20.58%, O 17.63%
Literature References: Prepn: J. E. Ware et al., DE 2409686 (1974 to Rohm & Haas). Evaluation as rodenticide: D. L. Peardon, Pest Control 42, 14, 16, 18, 27 (1974); J. E. Brooks, P. T. Htun, J. Hyg. 80, 401 (1978). Mode of action: D. L. Peardon, J. E. Ware, Pest Control 45, 49 (1977).
Properties: mp 223-225° (dec). LD50 orally in male, female rats: 6.2, 7.2 mg/kg (Brooks, Htun).
Melting point: mp 223-225° (dec)
Toxicity data: LD50 orally in male, female rats: 6.2, 7.2 mg/kg (Brooks, Htun)
Use: Rodenticide.
Pyrimithate Pyrinoline Pyriproxyfen Pyrisuccideanol Pyrithiamine

CAS number 53558-25-1
PubChem 40813
ChemSpider 37276 YesY
Jmol-3D images Image 1
Molecular formula C13H12N4O3
Molar mass 272.26 g mol−1
Main hazards Toxic
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Pyrinuron (Pyriminil, Vacor) is a chemical compound formerly used as a rodenticide.[1] Commercial distribution was voluntarily suspended in 1979 and it is not approved by the Environmental Protection Agency for use in the United States.[2] If it is ingested by humans in high doses, it may selectively destroy insulin-producing beta cells in the pancreas causing type 1 diabetes.[2]