Product Name

  • Name

    Pyrethrins

  • EINECS 232-319-8
  • CAS No. 8003-34-7
  • Density 0.84-0.86 g/cm3
  • Solubility 0.2 (pyrethrin I) and 9 (pyrethrin II) mg l-1 (ambient temp.)
  • Melting Point 90-95°C(lit.)
  • Formula Unspecified
  • Boiling Point 170~200
  • Molecular Weight 700.90000
  • Flash Point 75°C
  • Transport Information
  • Appearance White crystals or crystalline powder
  • Safety 13-60-61
  • Risk Codes  Xn:Harmful;
  • Molecular Structure Molecular Structure of 8003-34-7 (Pyrethrins)
  • Hazard Symbols R20/21/22:; R50/53:;
  • Synonyms Pyrethrinsand Pyrethroids;Pyrethrum;Biopiren plus;Diatect;Firmotox;Goldgeist forte;Nettafid;Parexan;Pyganic;Pyre-sin Plus;Pyrellin;Pyrethrins andPyrethroids, chrysanthemates;Pyrethrins and Pyrethroids, esters;Pyrethrins,chrysanthemates;Pyrethrum (insecticide);Pyrethrum FS;Pyrocide 50;Take Down;Take Down Garden Spray;
  • PSA 113.04000
  • LogP 8.26950

Pyrethrum Chemical Properties

Pyrethrins has some synonyms like pyrethrum-extract;pyrethrins ,  including cinerins; Pyrethrum ; chrysanthemumcinerareaefolium ; cineriniorii,and so on.The pyrethrins are contained in the seed cases of the perennial plant pyrethrum (Chrysanthemum cinerariaefolium).

Molecular Formula: C22H28O5
Molecular Weight: 372.45

Pyrethrum Uses

The pyrethrins is a natural organic compound that has potent insecticidal activity. Pyrethrins is used in many varieties of insecticide, fogging products and in some pet products.

Pyrethrum Toxicity Data With Reference

1.   

orl-hmn LDLo:1 g/kg

   85GYAZ    Pflanzenschutz-und Schaedlingsbekaempfungsmittel: Abriss einer Toxikologie und Therapie von Vergiftungen 2nd ed.,Klimmer, O.R.,Hattingen, Germany.: Hundt-Verlag,1971,142.
2.   

orl-chd LDLo:750 mg/kg

   CMEP**    Clinical Memoranda on Economic Poisons US Dept. HEW, Public Health Service, Communicable Disease Center,Atlanta, GA.: 1956,1.
3.   

orl-rat LD50:200 mg/kg

   GUCHAZ    Guide to the Chemicals Used in Crop Protection 6 (1973),442.
4.   

ipr-rat LD50:200 mg/kg

   WRPCA2    World Review of Pest Control. 3 (1964),28.
5.   

ivn-rat LDLo:5 mg/kg

   PCBPBS    Pesticide Biochemistry and Physiology. 2 (1972),301.
6.   

orl-mus LD50:370 mg/kg

   EVHPAZ    EHP, Environmental Health Perspectives. Subseries of DHEW Publications. 14 (1976),15.
7.   

ipr-mus LDLo:25 mg/kg

   PSEBAA    Proceedings of the Society for Experimental Biology and Medicine. 34 (1936),135.

RTECS:  UR4200000

Pyrethrum Safety Profile

Moderately toxic to humans by ingestion. Poison experimentally by ingestion, intraperitoneal, and intravenous routes. Experimental reproductive effects. An allergen. They are rapidly detoxified in the gastrointestinal tract, but can cause gastrointestinal, respiratory, and central nervous system effects. A dose of 15 g has caused the death of a child. Chronic exposures can cause liver damage. Combustible when exposed to heat or flame. When heated to decomposition they emits acrid smoke and irritating fumes. An insecticide.

Hazard Codes:  Xn,N
Risk Statements:  20/21/22-50/53
Safety Statements:  13-60-61
RIDADR:  UN 2810 6.1/PG 3
WGK Germany:  3
HazardClass:  6.1(b)
PackingGroup:  III

Pyrethrum Standards and Recommendations

OSHA PEL: TWA 5 mg/m3
ACGIH TLV: TWA 5 mg/m3; Not Classifiable as a Human Carcinogen
DFG MAK: 5 mg/m3

Pyrethrum Analytical Methods

For occupational chemical analysis use OSHA: #ID-70 or NIOSH: Pyrethrum, 5008.