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Home/Compounds/Industrial Chemical/Hexamethylene diisocyanate
C8H12N2O2
168.19 g/mol
Industrial ChemicalDanger

1,6-Diisocyanatohexane

CAS822-06-0EC212-485-8
Category
Industrial Chemical
Compound Class
Other
Primary Use
Polyurethane foams and coatings hardener

Hexamethylene diisocyanate (HDI) is a pale yellow liquid with a strong odor, primarily used as an industrial chemical in the production of polyurethane foams and coatings. It serves as a hardener in automotive and aircraft paints.

Polyurethane foams and coatings hardenerHardener in automobile paintsHardener in airplane paints

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 822-06-0

Related Compounds

StrongStructure SimilarSimilarity 1.00

1,8-Diisocyanatooctane

CAS10124-86-4

Isocyanate intermediate for polyurethane production

StrongStructure SimilarSimilarity 0.93

1,4-Diisocyanatobutane

CAS4538-37-8

Chemical intermediate for polyurethane synthesis

SimilarStructure SimilarSimilarity 0.74

Octadecyl isocyanate

CAS112-96-9

Surface modifier

ReferenceSame Category

Sodium stearate

CAS822-16-2

Emulsifying and stiffening agent

ReferenceSame Category

Toluene-2,6-diamine

CAS823-40-5

intermediate for dyes and polymers

ReferenceSame Category

Phenylphosphonic dichloride

CAS824-72-6

reactive liquid for chemical synthesis

ReferenceSame Category

2-methyl-8-hydroxyquinoline

CAS826-81-3

high performance adhesives for electronics

Safety Reference

Corrosive
Corrosive
Toxic
Toxic
Harmful
Harmful
Health Hazard
Health Hazard
Danger
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H331Toxic if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
H302Harmful if swallowed
H330Fatal if inhaled
H311Toxic in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance2
  • EU REACH Restriction ListEURegulation
    RestrictedSource
  • CN Catalogue of Hazardous ChemicalsCNRegulation
    Listed· listed since 2015-05-01Source

Customs Tariff Classification

The international HS code for 1,6-Diisocyanatohexane (CAS 822-06-0) 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

1,6-diisocyanatohexane

InChIKey

RRAMGCGOFNQTLD-UHFFFAOYSA-N

SMILES

C(CCCN=C=O)CCN=C=O

Synonyms (33)
  • GMDI
  • HDI
  • HDI-IC
  • HMDI
  • 1,6-Diisocyanatohexane
  • 1,6-Hexanediol diisocyanate
  • 1,6-Hexylene diisocyanate
  • 1,6-diisocyanatohexamethylene
  • 1,6-hexane diisocyanate
  • Desmodur H
  • HDI cpd
  • HEXAMETHYLENE DIISOCYANATE
  • Hexamethylendiisokyanat
  • Hexane 1,6-diisocyanate
  • Hexane, 1,6-diisocyanato-
  • Hexane,6-diisocyanato-
  • Isocyanic acid,6-hexanediol
  • S 90
  • Szesciometylenodwuizocyjanian
  • TL 78