5936. Metepa

Nomenclature

CAS number: 57-39-6
1,1′,1″-Phosphinylidynetris[2-methylaziridine]; tris[2-methyl-1-aziridinyl]phosphine oxide; tris[1-methylethylene]phosphoric triamide; methyl aphoxide; methapoxide; MAPO.
C9H18N3OP; mol wt 215.23.
C 50.22%, H 8.43%, N 19.52%, O 7.43%, P 14.39%.

Description and references

Prepd by treatment of 2-methylethyleneimine with POCl3 in alk medium: Parke et al., US 2606902 (1952 to Am. Cyanamid). Toxicity study: Gaines, Toxicol. Appl. Pharmacol. 14, 515 (1969).

Chemical structure

Properties

Liquid, bp 90-92° (0.15-0.3 mm). LD50 in male, female rats (mg/kg): 136, 213 orally (Gaines).

Use

Chemosterilant; in creaseproofing and flameproofing textiles.