carbon dioxide
This is the primary chemical detail page for carbon dioxide · CAS 1111-72-4. The verified molecular formula is CO2. 114 searchable synonyms resolve back to this record. Use this page as the main reference for identifiers, naming variants, and supplier-linked context.
Overview
Key identifiers
- CAS No.
- 1111-72-4
- Primary name
- carbon dioxide
- Formula
- CO2
Record status
Added Mar 30, 2026 · Updated Mar 30, 2026
Properties
- Molecular formula
- CO2
Safety
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About this chemical
This page represents the primary record for carbon dioxide with CAS Registry Number 1111-72-4. The molecular formula is CO2. This chemical may be referenced by 114 different names or synonyms.
Primary identifiers: English name · CAS · Molecular formula (when available). Synonym and alternate-name pages all resolve back to this record.
Synonyms and naming
Chemicals are often known by multiple names depending on context, industry, or language. This entry includes 114 searchable synonyms. Alternate-name landing pages, where present, all resolve back to this main record.
Use the synonym list below as naming context; keep this chemical detail page as the primary reference.
Formula status
The molecular formula CO2 for this substance is verified. This identifier has been confirmed to accurately represent the chemical composition.
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Synonyms
Common & readable names (102)
- carbonic anhydride
- 124-38-9
- carbonic acid gas
- Carbonic acid anhydride
- methanedione
- Carbonica
- Kohlendioxyd
- Carbon oxide, di-
- Kohlensaure
- Khladon 744
- After-damp
- AER Fixus
- Anhydride carbonique
- Dioxido de carbono
- Dioxyde de carbone
- Carbon oxide (CO2)
- R 744
- Carbon-12 dioxide
- INS NO.290
- INS-290
- E-290
- 142M471B3J
- E290
- CHEBI:16526
- Dioxide, Carbon
- Anhydride, Carbonic
- Dry ice (solid
- Carbon Dioxide Air
- Carbon Dioxide Nitrogen
- RefChem:6625
- Carbon Dioxide Compressed
- Carbon Dioxide Air Mixture
- Carbon Dioxide Refrigerated
- CARBON DIOXIDE, USP
- DTXCID507028
- Air 90% Carbon Dioxide 10%
- 204-696-9
- Dry ice
- Cardice
- Drikold
- HSDB 516
- Dry ice (solid form)
- Kohlensaure [German]
- Caswell No. 163
- Kohlendioxyd [German]
- Dioxyde de carbone [French]
- Dioxido de carbono [Spanish]
- Anhydride carbonique [French]
- Carbon dioxide [USP]
- EINECS 204-696-9
- EPA Pesticide Chemical Code 016601
- dioxidocarbon
- epoxyketone
- Dioxomethane
- Dricold
- carbon dioxid
- dry-ice
- Dioxomethane #
- methane, dioxo-
- Carbon dioxide, refrigerated liquid
- Carbonic acid, gas
- Makr carbon dioxide
- SCHEMBL916
- CARBON DIOXIDE [II]
- CARBON DIOXIDE [MI]
- CARBON DIOXIDE [FCC]
- CARBON DIOXIDE [JAN]
- 18923-20-1
- Carbon dioxide (JP18/USP)
- CARBON DIOXIDE [HSDB]
- Carbon dioxide, >=99.8%
- CARBON DIOXIDE [VANDF]
- CARBON DIOXIDE [MART.]
- CARBON DIOXIDE [WHO-DD]
- CHEMBL1231871
- SCHEMBL12376937
- BDBM10856
- Carbon dioxide, solid or dry ice
- [CO2]
- CARBON DIOXIDE [GREEN BOOK]
- CARBON DIOXIDE [EP IMPURITY]
- CARBON DIOXIDE [EP MONOGRAPH]
- CARBON DIOXIDE [USP MONOGRAPH]
- DB09157
- CARBON DIOXIDE (13C; 18O2)
- Carbon dioxide, puriss., >=99.998%
- E 290
- Q1997
- R-744
- Carbon dioxide [UN1013] [Nonflammable gas]
- Carbon dioxide, Messer(R) CANgas, 99.995%
- D00004
- Carbon Dioxide Std CO2 standard 2g/L (2mL ampoules)
- Carbon Dioxide Std CO2 standard 3g/L (2mL ampoules)
- Carbon Dioxide Std CO2 standard 4g/L (2mL ampoules)
- Carbon Dioxide Std CO2 standard 6g/L (2mL ampoules)
- Carbon dioxide, solid or dry ice [UN1845] [Class 9]
- Carbon dioxide (99.8%), cylinder of 14 L, analytical standard
- Carbon dioxide (99.8%), cylinder of 48 L, analytical standard
- Carbon dioxide, refrigerated liquid [UN2187] [Nonflammable gas]
- 26796-46-3
- 2684-00-6
Registry & reference names (12)
- DTXSID4027028
- CO2
- UN1013
- UN1845
- UN2187
- UNII-142M471B3J
- NSC-81688
- UN 1013
- UN 1845
- UN 2187
- NS00076302
- C00011
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