O2
31.999 g/mol
Industrial ChemicalDanger
Oxygen
CAS7782-44-7EC231-956-9
Category
Industrial Chemical
Compound Class
n.a
Primary Use
oxidizing agent for steel and chemical production
Oxygen is a highly reactive nonmetallic element and a potent oxidizing agent. It readily forms oxides with most elements and other compounds, making it essential in steel production and chemical manufacturing.
oxidizing agent for steel productionoxidizing agent for chemical 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.
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Related Compounds
StrongSame Parent
Potassium superoxide
CAS12030-88-5
Oxidizer and oxygen source
ReferenceSame Category
Dichlorine
CAS7782-50-5
Disinfectant and oxidizing agent
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
Referencestereoisomer of
(¹⁸O₂)dioxygen
CAS32767-18-3
research compound
Safety Reference
Danger
H270May cause or intensify fire; oxidizer
H280Contains gas under pressure; may explode if heated
H281Contains refrigerated gas; may cause cryogenic burns or injury
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Oxygen (CAS 7782-44-7) is 2804.40.
HS code (international, 6-digit)
2804.40
EU CN code (8-digit)
2804 40 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 oxygen
InChIKey
MYMOFIZGZYHOMD-UHFFFAOYSA-N
SMILES
O=O
Synonyms (118)
- 0XYGEN
- E-948
- LOX
- O
- O2
- OXY
- Oxygen (JP18/USP)
- Oxygen, USP
- (1)O2
- 40% Oxygen/Nitrogen Mix
- Air Compressed
- Air Compressed Medical Air
- Carbon Dioxide Oxygen
- Carbon Dioxide Oxygen Mix
- Carbon Dioxide/Oxygen 5/95
- Compressed oxygen
- Dioxygen
- Disauerstoff
- Ez-OX
- Ez-OX Plus
- Focus Medical Oxygen
- G02 Therapy
- Helium/Oxygen Mix
- Helium/Oxygen Mixture 70/30
- Helium/Oxygen Mixture 80/20
- Hyperbaric Chamber Mix
- INS NO.948
- Liquid oxygen
- Medical Oxygen Compressed
- Molecular oxygen
- NINA WATER (Rich anions)
- Nitrogen Oxygen Mix
- Nitrogen, Oxygen
- OXYGEN COMPONENT OF RNS60
- OXYGEN GAS
- OXYGEN [MART.]
- OXYGEN, NITROGEN
- Oxigeno [Spanish]
- Oxygen (8CI,9CI)
- Oxygen (liquid)
- Oxygen 16
- Oxygen 64889-0001
- Oxygen 93 percent
- Oxygen Carbon Dioxide
- Oxygen Compressed Gas
- Oxygen Compressed U.S.P
- Oxygen Helium Mixture 20/80
- Oxygen Helium Mixture 30/70
- Oxygen Helium Mixture 40/60
- Oxygen Nitrogen Mixture
- Oxygen Refrigerated Liquid
- Oxygen Size 400
- Oxygen Size B
- Oxygen Size C
- Oxygen Size D
- Oxygen Size E
- Oxygen Size F
- Oxygen Size H
- Oxygen Size M
- Oxygen Size T
- Oxygen, Messer(R) CANGas
- Oxygen, Refrigerated
- Oxygen, compressed
- Oxygen, liquified
- Oxygen-helium Mixture
- Oxygen/Helium 20/80
- Oxygen/Helium 25/75
- Oxygen/Helium 30/70
- Oxygen/Helium 40/60
- Oxygen/Helium 50/50
- Oxygen/Nitrogen 10/90
- Oxygen/Nitrogen 12/88
- Oxygen/Nitrogen 15/85
- Oxygen/Nitrogen 21/79
- Oxygen/Nitrogen 25/75
- Oxygen/Nitrogen 26/74
- Oxygen/Nitrogen 30/70
- Oxygen/Nitrogen 38/62
- Oxygen/Nitrogen 40/60
- Oxygen/Nitrogen 5/95
- Oxygen/Nitrogen 50/50
- Oxygen/Nitrogen 52/48
- Oxygen/Nitrogen 75/25
- Oxygen/Nitrogen 9.7/90.3
- Oxygene [French]
- Oxygenium
- Oxygenium medicinale
- Pure oxygen
- RNS60 COMPONENT OXYGEN
- Sauerstoff
- Vet O2
- [OO]
- dioxidanediyl
- dioxygen(2.) (triplet)
- dioxygene
- oxidanone
- oxygen
- oxygen molecule
- oxygen monoxide
- oxygene
- reconstituted Air
- singlet dioxygen
- singlet molecular oxygen
- triplet dioxygen
- triplet molecular oxygen
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