1,3-Diazabenzene; 1,3-Diazine; Metadiazine; Miazine; m-Diazine; [ChemIDplus] UN1993
Liquid or solid with a penetrating odor; mp = 20-22 deg C; [Merck Index] Clear, slightly brownish-yellow liquid; Hygroscopic; mp = 19 deg C; [Aldrich MSDS]
"The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides, thiamine (vitaminB1) and alloxan. It is also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine." [Wikipedia]
Flammable; May cause irritation; [Aldrich MSDS]
12.9 mm Hg
The Guide in the Emergency Response Guidebook is for "Flammable liquid, n.o.s."
No other related information on this agent was found.