Cl2H2Si
101 g/mol
Electronic ChemicalDanger
Dichlorosilane (UN2189) (Poison gas)
CAS4109-96-0EC223-888-3
Category
Electronic Chemical
Compound Class
Other
Primary Use
Semiconductor manufacturing agent
This compound is a flammable and poisonous gas with a strong repulsive odor. It is easily ignited in air, reacts with oxidizing agents, is very toxic by inhalation, and is a strong irritant to skin, eyes, and mucous membranes.
Semiconductor manufacturing agentToxic gas from spilling chemical in waterPhotovoltaic agent
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.
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Read moreSafety Reference
Danger
H220Extremely flammable gas
H261In contact with water releases flammable gas
H280Contains gas under pressure; may explode if heated
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H330Fatal if inhaled
H331Toxic if inhaled
H371May cause damage to organs
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Dichlorosilane (UN2189) (Poison gas) (CAS 4109-96-0) is 2853.90.
HS code (international, 6-digit)
2853.90
EU CN code (8-digit)
2853 90 90
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
dichlorosilane
InChIKey
MROCJMGDEKINLD-UHFFFAOYSA-N
SMILES
[SiH2](Cl)Cl
Synonyms (7)
- Dichlorosilane(SiH2Cl2)
- Silane, dichloro-
- dichiorosilane
- dichlorosilane
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