Cl2
70.9 g/mol
Industrial ChemicalDanger
Molecular chlorine
CAS7782-50-5EC231-959-5
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Disinfectant and oxidizing agent
Chlorine is a chemical element with the symbol Cl and atomic number 17. It is a yellow-green gas at room temperature and is the second-lightest halogen, with properties intermediate between fluorine and bromine.
DisinfectantOxidizing 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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Related Compounds
ReferenceSame Category
Potassium hypophosphite
CAS7782-87-8
reducing agent in chemical synthesis
ReferenceSame Category
Lithium amide
CAS7782-89-0
Catalyst for chemical synthesis
ReferenceSame Category
Sodium amide
CAS7782-92-5
Dehydrating agent and synthesis intermediate
ReferenceSame Category
Hydrogen sulfide
CAS7783-06-4
Industrial chemical for steel, petroleum, and paper
Safety Reference
Danger
H270May cause or intensify fire; oxidizer
H315Causes skin irritation
H319Causes serious eye irritation
H331Toxic if inhaled
H335May cause respiratory irritation
H400Very toxic to aquatic life
H280Contains gas under pressure; may explode if heated
H330Fatal if inhaled
H410Very toxic to aquatic life with long lasting effects
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H373May cause damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Molecular chlorine (CAS 7782-50-5) is 2801.10.
HS code (international, 6-digit)
2801.10
EU CN code (8-digit)
2801 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
molecular chlorine
InChIKey
KZBUYRJDOAKODT-UHFFFAOYSA-N
SMILES
ClCl
Synonyms (47)
- D-150
- E-925
- Bertholite
- Bertholite /warfare gas/
- Chloor
- Chloor [Dutch]
- Chlor
- Chlor [German]
- Chlore
- Chlore [French]
- Chlorine
- Chlorine 35
- Chlorine gas
- Chlorine mol.
- Chlorine, puriss.
- Chlorine-elemental
- Chlorinum
- Chloroniumchlorid
- Cl
- Cl2 Gas
- Cloro
- Cloro [Italian]
- Dietary Chlorine
- Disinfectant(NaClO)
- Gas, Chlorine
- Gas, Cl2
- HBA Disinfectant
- INS NO.925
- Molecular chlorine
- Total Chlorine
- chorine chloride
- dichlorane
- dichlorine
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