Title: m-Phenylenediamine
CAS Registry Number: 108-45-2
CAS Name: 1,3-Benzenediamine
Additional Names: m-diaminobenzene
Molecular Formula: C6H8N2
Molecular Weight: 108.14
Percent Composition: C 66.64%, H 7.46%, N 25.90%
Literature References: Prepd by the reduction of m-dinitrobenzene: Kuhn, US 2768209 (1956 to Ringwood); Faust, J. Prakt. Chem. 6, 14 (1958); Neilson et al., J. Chem. Soc. 1962, 371; Tallee, Peltier, Compt. Rend. 259, 400 (1964). Toxicity study: C. Burnett et al., J. Toxicol. Environ. Health 2, 657 (1977).
Properties: White crystals becoming red on exposure to air. d 1.139; mp 62-63°; bp 284-287°; dipole moment 1.79. Fire point: 175°. Sol in water, methanol, ethanol, chloroform, acetone, dimethylformamide, methyl ethyl ketone, dioxane. Slightly sol in ether, carbon tetrachloride, dibutyl phthalate, isopropanol. Very slightly sol in benzene, toluene, xylene, butanol. Keep well closed and protected from light. LD50 in rats (mg/kg): 650 orally; 283 i.p. (Burnett).
Melting point: mp 62-63°
Boiling point: bp 284-287°
Density: d 1.139
Toxicity data: LD50 in rats (mg/kg): 650 orally; 283 i.p. (Burnett)
Derivative Type: Hydrochloride
Properties: White or slightly red, crystalline powder; becomes darker on exposure to air. Freely sol in water; sol in alcohol.
Use: Manuf dyes; rubber curing agents, ion exchange resins, decolorizing resins, formaldehyde condensates, resinous polyamides, block polymers, textile fibers, urethanes, petroleum additives, rubber chemicals, corrosion inhibitors; in photography; as reagent for gold and bromine. The hydrochloride chiefly as a reagent for nitrite.
m-Tyrosine Mucochloric Acid Mucochloric Anhydride Muconic Acid Muira Puama

CAS number 108-45-2 YesY
UNII OE624J2447 YesY
Jmol-3D images Image 1
Molecular formula C6H8N2
Molar mass 108.1
Appearance White solid
Melting point 64 - 66 °C
Boiling point 282 - 284 °C
R-phrases R23 R24 R25 R36 R37 R38 R40 R42 R43
S-phrases S22 S26 S36 S37 S39 S45
Autoignition temperature 560 °C
 N (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

m-Phenylenediamine, also called 1,3-diaminobenzene, is an organic compound with the formula C6H4(NH2)2. It is an isomer of o-phenylenediamine and p-phenylenediamine. It is a colourless solid.