C12H10
154.21 g/mol
Industrial ChemicalWarning
1,2-Dihydroacenaphthylene
CAS83-32-9EC201-469-6
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Chemical intermediate for dyes and plastics
1,2-Dihydroacenaphthylene, commonly known as acenaphthene, is a white crystalline compound derived from coal tar. It is primarily used as a chemical intermediate in the production of dyes and plastics.
Dye intermediateManufacturing plasticsInsecticide and fungicide production
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 83-32-9
Related Compounds
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CAS83-33-0
Synthetic intermediate for pharmaceuticals and agrochemicals
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Chemical intermediate for synthesis
ReferenceSame Category
2,4-Dichloro-3-methylbenzoic acid
CAS83277-23-0
Chemical intermediate
Referencestereoisomer of
Acenaphthene-d10
CAS15067-26-2
research compound
Safety Reference
Warning
H319Causes serious eye irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H373May cause damage to organs through prolonged or repeated exposure
H315Causes skin irritation
H335May cause respiratory irritation
H350May cause cancer
Customs Tariff Classification
The international HS code for 1,2-Dihydroacenaphthylene (CAS 83-32-9) is 2902.90.
HS code (international, 6-digit)
2902.90
EU CN code (8-digit)
2902 90 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
1,2-dihydroacenaphthylene
InChIKey
CWRYPZZKDGJXCA-UHFFFAOYSA-N
SMILES
C1CC2=CC=CC3=C2C1=CC=C3
Synonyms (18)
- 1,2-Dihydroacenaphthylene
- 1,8-DIHYDROACENAPHTHYLENE
- 1,8-Dihydroacenaphthalene
- 1,8-Ethylenenaphthalene
- Acenaphthene
- Acenaphthylene, 1,2-dihydro-
- Ethylenenaphthalene
- Naphthalene, 1,8-ethylene-
- Naphthyleneethylene
- acenapthene
- peri-Ethylenenaphthalene