O-Phenylenediamine

C6H8N2CAS 95-54-5108.14 g/mol

H2NH2N
Primary amine

Properties

Molecular formula
C6H8N2
Molar mass
108.14 g/mol
Exact mass
108.0687 Da
Melting point
103–104 °C
Boiling point
256–258 °C
pKa
4.47 (25 °C)
Flash point
156 °C (closed cup)
Water solubility
4 g/L (35 °C)
logP
0.85Crippen estimate
Polar surface area
52.0 Ų
H-bond donors / acceptors
2 / 2
Rotatable bonds
0

Hazards

Danger
Acute Toxic (GHS06)Health Hazard (GHS08)Environmental Hazard (GHS09)

Harmonised EU classification (CLP Annex VI, index 612-145-00-2), via PubChem.

Precautionary statements

P203, P261, P264, P264+P265, P270, P271, P272, P273, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P317, P318, P321, P330, P333+P317, P337+P317, P362+P364, P391, P405, P501

Identifiers

CAS number
95-54-5
SMILES
Nc1ccccc1N
InChIKey
GEYOCULIXLDCMW-UHFFFAOYSA-N
InChI
InChI=1S/C6H8N2/c7-5-3-1-2-4-6(5)8/h1-4H,7-8H2

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Type any one amount. The others follow from the molar mass.

Names and synonyms

15 names · show all
  • 1,2-Benzenediamine
  • C.I. 76010
  • C.I. Oxidation base 16
  • o-Diaminobenzene
  • Orthamine
  • 1,2-Diaminobenzene
  • 1,2-Phenylenediamine
  • o-Benzenediamine
  • 2-Aminoaniline
  • o-Aminoaniline
  • IK 3 (amine)
  • o-Aminophenylamine
  • IK 3
  • NSC 5354
  • OPDA

Reactions

Work with O-Phenylenediamine

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Same formula

Elsewhere