methanedione

Modify Date: 2026-07-13 17:49:28

methanedione Structure
methanedione structure
Common Name methanedione
CAS Number 1111-72-4 Molecular Weight 45.00220
Density 1.52 (vs air) Boiling Point N/A
Molecular Formula CO2 Melting Point -78ºC (subl.)(lit.)
MSDS Chinese USA Flash Point N/A
Symbol GHS04
GHS04
Signal Word Warning

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name methanedione
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.52 (vs air)
Melting Point -78ºC (subl.)(lit.)
Molecular Formula CO2
Molecular Weight 45.00220
Exact Mass 44.99320
PSA 34.14000
InChIKey CURLTUGMZLYLDI-OUBTZVSYSA-N
SMILES O=C=O

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS04
GHS04
Signal Word Warning
Hazard Statements H280
Precautionary Statements P410 + P403
Personal Protective Equipment Eyeshields;Gloves;half-mask respirator (US);multi-purpose combination respirator cartridge (US)
Safety Phrases S9
RIDADR UN 1013 2.2

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

13C Labeled carbon dioxide 13CO2
CARBON-(13)C DIOXIDE
13C Labeled carbon dioxide,13CO2
MFCD00064513
CARBON DIOXIDE- 13C
CARBON-13C DIOXIDE
13CO2

 methanedione | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the safety information for methanedione?
A: Safety information for methanedione: S9.
Q: What are the downstream products of methanedione?
A: Related downstream products(CAS) of methanedione: 4227-95-6;1520-57-6;2684-00-6;102-24-9;597-50-2;201230-82-2;3228-27-1;10221-56-4;1372712-54-3.
Q: What is the CAS number of methanedione?
A: CAS number of methanedione is 1111-72-4.
Q: What is the English name of methanedione?
A: The English name of methanedione is methanedione.
Q: What are the upstream materials of methanedione?
A: Related upstream materials(CAS) of methanedione: 80937-33-3;1641-69-6;51956-33-3;34557-54-5;7789-20-0;14742-23-5;6933-23-9;1333-74-0;1633-56-3;10102-43-9.
Q: What is the InChIKey of methanedione?
A: InChIKey of methanedione is CURLTUGMZLYLDI-OUBTZVSYSA-N.
Q: What is the melting point of methanedione?
A: Melting point of methanedione is -78ºC (subl.)(lit.).
Q: What is the polar surface area (PSA) of methanedione?
A: Polar surface area (PSA) of methanedione is 34.14000.
Q: What is the molecular weight of methanedione?
A: Molecular weight of methanedione is 45.00220.
Q: What is the SMILES notation of methanedione?
A: SMILES notation of methanedione is O=C=O.
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