C12H6N2O2
210.19 g/mol
Industrial ChemicalDanger
1,5-Naphthalene diisocyanate
CAS3173-72-6EC221-641-4
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Manufacture of polyurethane and rubber
1,5-Naphthalene diisocyanate is a white to light-yellow crystalline solid. It is primarily used in the manufacture of polyurethane and rubber products.
Manufacture of polyurethaneManufacture of rubber
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:EU REACH Restriction List
CAS 3173-72-6
Related Compounds
ReferenceSame Category
Pentaerythritol tetrakis(3-mercaptobutyrate)
CAS31775-89-0
Polymerization crosslinker
ReferenceSame Category
3-mercapto-1,2,4-triazole
CAS3179-31-5
chemical intermediate
ReferenceSame Category
Decyl methacrylate
CAS3179-47-3
monomer for polymer synthesis
ReferenceSame Category
3-(diethoxymethylsilyl)propylamine
CAS3179-76-8
Formulating coatings, adhesives, and sealants
Safety Reference
Danger
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
H330Fatal if inhaled
H332Harmful if inhaled
H401Toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H373May cause damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- EU REACH Restriction ListEURegulationRestrictedSource
Customs Tariff Classification
The international HS code for 1,5-Naphthalene diisocyanate (CAS 3173-72-6) is 2929.10.
HS code (international, 6-digit)
2929.10
EU CN code (8-digit)
2929 10 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1,5-diisocyanatonaphthalene
InChIKey
SBJCUZQNHOLYMD-UHFFFAOYSA-N
SMILES
C1=CC2=C(C=CC=C2N=C=O)C(=C1)N=C=O
Synonyms (14)
- 1,5-Diisocyanatonaphthalene
- 1,5-NDI
- 1,5-Naphthalene diisocyanate
- 1,5-Naphthyl diisocyanate
- 1,5-Naphthylene diisocyanate
- Naphthalene 1,5-Diisocyanate
- Naphthalene diisocyanate
- Naphthalene,5-diisocyanato-