Chemistry:1,5-Diaminonaphthalene

1,5-Diaminonaphthalene

Names
Preferred IUPAC name Naphthalene-1,5-diamine
Other names Alphamin, 1,5-DAN
Identifiers
CAS Number	2243-62-1
3D model (JSmol)	Interactive image
ChEBI	CHEBI:53003
ChEMBL	ChEMBL538965
ChemSpider	15851
EC Number	218-817-8
KEGG	C19463
PubChem CID	16720
RTECS number	QJ3400000
UNII	13PD3J52LK
UN number	3077
InChI InChI=1S/C10H10N2/c11-9-5-1-3-7-8(9)4-2-6-10(7)12/h1-6H,11-12H2 Key: KQSABULTKYLFEV-UHFFFAOYSA-N
SMILES C1=CC2=C(C=CC=C2N)C(=C1)N
Properties
Chemical formula	C10H10N2
Molar mass	158.204 g·mol−1
Appearance	white solid
Density	1.4
Melting point	185–187 °C (365–369 °F; 458–460 K)
Structure
Crystal structure	monoclinic
Space group	P21/c
Lattice constant	a = 5.1790, b = 11.008, c = 21.238 α = 90°, β = 90.68°, γ = 90°
Lattice volume (V)	1210.7
Formula units (Z)	6
Hazards
GHS pictograms
GHS Signal word	Warning
GHS hazard statements	H351, H410
GHS precautionary statements	P201, P202, P273, P281, P308+313, P391, P405, P501
Flash point	226 °C (439 °F; 499 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tracking categories (test):

• SizeSet

1,5-Diaminonaphthalene is an organic compound with the formula C₁₀H₆(NH₂)₂. It is one of several diaminonaphthalenes. It is a colorless solid that darkens in air due to oxidation.

Synthesis and reactions

It is prepared by reduction of 1,5-dinitronaphthalene, which in turn is obtained with the 1,8-isomers by nitration of 1-nitronaphthalene. It can also be prepared by treatment of 1,5-dihydroxynaphthalene with ammonium sulfite. It is a precursor to naphthalene-1,5-diisocyanate, a precursor to specialty polyurethanes.

See also

• C₁₀H₁₀N₂