1,5-Diisocyanatonaphthalene

Name: 1,5-Diisocyanatonaphthalene
SKU: ACM3173726-1
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Catalog NumberACM3173726-1

CAS Number3173-72-6

CategoryMonomers; Polymers

Description

1,5-naphthalene diisocyanate is a white to light-yellow crystalline flakes. (NIOSH, 2016);OtherSolid;WHITE-TO-LIGHT-YELLOW CRYSTALS.;White to light-yellow, crystalline flakes.

IUPAC Name

1,5-diisocyanatonaphthalene

Molecular Weight

210.19g/mol

Molecular Formula

C12H6O2N2;C10H6(NCO)2;C12H6N2O2

Canonical SMILES

C1=CC2=C(C=CC=C2N=C=O)C(=C1)N=C=O

InChI

InChI=1S/C12H6N2O2/c15-7-13-11-5-1-3-9-10(11)4-2-6-12(9)14-8-16/h1-6H

InChI Key

SBJCUZQNHOLYMD-UHFFFAOYSA-N

Boiling Point

505 °F at 760 mm Hg (NIOSH, 2016);329.85 °C;at 0.7kPa: 167 °C;505°F

Melting Point

261 °F (NIOSH, 2016);130.5 °C;130 °C;261°F

Flash Point

311 °F (NIOSH, 2016);192 °C c.c.;311°F

Density

Relative density (water = 1): 1.42

Application

1,5-Diisocyanatonaphthalene serves as a vital component in the production of elastomers, functioning as a curing agent. Known for its lower vapor pressure relative to tolylene diisocyanate, it poses less toxicity but still possesses sensitizing properties. Occurring as white to light yellow crystalline flakes, 1,5-Diisocyanatonaphthalene features a distinct odor and is a member of the naphthalene family. While it offers benefits in manufacturing, it must be handled with care due to its capacity for exothermic reactions with various compounds, including amines, aldehydes, and alcohols, potentially releasing heat or toxic gases. It is also reactive with water, forming amines and releasing carbon dioxide.

Complexity

309

Covalently-Bonded Unit Count

EC Number

221-641-4;928-025-0

Exact Mass

210.042927g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0653

MeSH Entry Terms