Molecular Weight of Formaldehyde (CH2O)
Identification of Formaldehyde Chemical Compound
| Chemical Formula | CH2O |
|---|---|
| Molecular Weight | 30.02598 g/mol |
| IUPAC Name | formaldehyde |
| SMILES String | C=O |
| InChI | InChI=1S/CH2O/c1-2/h1H2 |
| InChIKey | WSFSSNUMVMOOMR-UHFFFAOYSA-N |
Molecular Weight Description
The formaldehyde molecule consists of 2 Hydrogen atom(s), 1 Carbon atom(s), and 1 Oxygen atom(s) - a total of 4 atom(s). The molecular weight of formaldehyde is determined by the sum of the atomic weights of each constituent element multiplied by the number of atoms, which is calculated to be:
$$ 30.02598 · \frac{g}{mol} $$
The exact term of the above molecular weight is “molar mass”, which is based on the atomic mass of each element. Molecular weight is actually an older term of “relative molar mass” or “molecular mass”, which is a dimensionless quantity equal to the molar mass divided by the molar mass constant defined by 1 g/mol.
Molecular masses are calculated from the standard atomic weights of each nuclide, while molar masses are calculated from the atomic mass of each element. The atomic mass takes into account the isotopic distribution of the element in a given sample.
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- Name: ethanol
- CAS #: 64-17-5
- Formula: C2H5OH
- Smiles: CCO
- InChI: InChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3
- InChIKey: LFQSCWFLJHTTHZ-UHFFFAOYSA-N
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Additional Information for Identifying Formaldehyde Molecule
-
Structure Data File (SDF/MOL File) of formaldehyde
The structure data file (SDF/MOL File) of formaldehyde is available for download in the SDF page of formaldehyde, which provides the information on atoms, bonds, connectivity and coordinates of formaldehyde. The formaldehyde structure data file can be imported to most of the chemistry-related software, providing three-dimensional visualization and further analysis.
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Chemical structure of formaldehyde
The molecular structure image of formaldehyde is available in chemical structure page of formaldehyde, which provides the molecular geometry information, i.e., the spatial arrangement of atoms in formaldehyde and the chemical bonds that hold the atoms together.
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Chemical formula of formaldehyde
The molecular formula of formaldehyde is given in chemical formula page of formaldehyde, which identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.
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InChI (IUPAC International Chemical Identifier) information of formaldehyde
In addition to the molecular weight information, the structural information of formaldehyde in a textual expression is available via InChi. The full standard InChI of formaldehyde is given below:
InChI=1S/CH2O/c1-2/h1H2
It can provide a way to encode the molecular information of formaldehyde to facilitate the search for the compound information in databases and on the web.
The condensed, 27 character standard InChIKey (hashed version of the full standard InChI) of formaldehyde is:
InChIKey=WSFSSNUMVMOOMR-UHFFFAOYSA-N
It may allow easier web searches for formaldehyde. The InChIKey, however, needs to be linked to the full InChI as well in order to get back to the original structure of the formaldehyde as the full standard InChI cannot be reconstructed from the InChIKey.
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Other names (synonyms) or registry numbers of formaldehyde
There may be different names of the formaldehyde compound depending on the various situations of industrial applications, which are given below including the registry numbers if available:
- BBV-201542
- Paraformaldehyde (JP16)
- Formalin solution, neutral buffered, 10%, case of 24 x 120 mL, histological tissue fixative
- Formaldehyde solution, meets USP testing specifications, contains 9.0-15% methanol as stabilizer
- Formaldehyde solution, meets analytical specification of Ph.??Eur., BP, 35 wt. %, contains 10% methanol as stabilizer
- Formaldehyde solution, ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)
- 8006-07-3
- 8005-38-7
- 1227476-28-9
- 1158237-02-5
- 1156543-56-4
- 112068-71-0
- 1053659-79-2
- 104814-22-4
- 104512-58-5
- Formalin solution, neutral buffered, 10%, case of 48 x 15 mL, histological tissue fixative
- Formalin solution, neutral buffered, 10%, case of 24 x 60 mL, histological tissue fixative
- Formaldehyde solution, stabilized with methanol, ~37 wt. % in H2O, analytical standard
- Formaldehyde solution, SAJ first grade, >=35.0%, contains methanol as stabilizer
- Formaldehyde solution, LR, contains 5-8% methanol as stabilizer, 37-41 % (w/v)
- Formaldehyde solution, JIS special grade, 36.0-38.0%, contains methanol as stabilizer
- Formaldehyde solution, for molecular biology, BioReagent, >=36.0% in H2O (T)
- Formaldehyde solution, contains 10-15% methanol as stabilizer, 37 wt. % in H2O
- Formaldehyde solution, AR, contains 5-8% methanol as stabilizer, 37-41 % (w/v)
- FORMALDEHYDE 37% W/W AQUEOUS SOLUTION, STABILIZED WITH 7-8% METHANOL
- Formaldehyde solution, puriss., 37.0%, contains 6.0-9.0% Methanol
- Formaldehyde solution, meets analytical specification of USP, >=34.5 wt. %
- Formaldehyde solution, for molecular biology, 36.5-38% in H2O
- Formaldehyde solution, puriss. p.a., ACS reagent, >=36.5%
- Formaldehyde neutral buffer solution, 7.5% formaldehyde in H2O
- Formaldehyde neutral buffer solution, 3.7% formaldehyde in H2O
- Paraformaldehyde, 16% w/v aqueous solution, methanol free
- I14-114193
- I14-94270
- I14-19020
- SR-01000944454-1
- Formaldehyde, solutions with not <25% formaldehyde
- Formaldehyde solution, 37 wt. % in water 100ml
- Formaldehyde solution, tested according to Ph.Eur.
- A827922
- Paraformaldehyde [UN2213] [Flammable solid]
- Formaldehyde, solutions (Formalin) (corrosive)
- D01494
- D00017
- Paraformaldehyde [UN2213] [Flammable solid]
- Formaldehyde solution ACS 37 wt. % in H2O
- Y1318
- P0018
- F0622
- Formaldehyde solution, 37 wt. % in H2O
- E240
- 68294-73-5
- UN 2209
- UN 1016
- RTR-017915
- OC 2186
- NA 9202
- Formaldehyde, 37% in aqueous solution
- FM 282
- ANW-44009
- Formaldehyde, solutions, flammable
- Formaldehyde, as formalin solution
- Formaldehyde, solution, flammable
- HMDB01426
- Paraformaldehyde, 97% 100g
- GTPL4196
- BIDD:ER0493
- Formaldehyde solution, 10%
- C3H8O
- Formaldehyde, methanol-free
- Formaldehyde, 4% in PBS
- EC 200-001-8
- Melamine-Formaldehyde Resin
- Epitope ID:116196
- bmse000256
- FORMALDEHYDE 37%
- Paraformaldehyde (JP17)
- POLY(OXYMETHYLENE)
- Formaldehyde [BSI:ISO]
- H2CO
- FORMALDEHYDE, ACS
- RFPDT@
- Hercules 37M6-8
- CARBON-MONOXIDE
- Formalin (JP17)
- Floguard 1015
- Methan 21
- Formalin [JAN]
- Hyperband (TN)
- F-gen
- carbon mono-oxide
- Formalin solution, neutral buffered, 10%, histological tissue fixative
- Para-formaldehyde
- paraform-aldehyde
- para formaldehyde
- Forma-ray
- paraformaidehyde
- Durine
- Veracur
- Formadon
- methanon
- formaidehyde
- Paraformaldehyde [JAN]
- Formic aldehyde
- FOR
- 8013-13-6
- 53026-80-5
- Formaldehyde, solutions with not <25% formaldehyde [UN2209] [Corrosive]
- MFCD00133991
- MFCD00003274
- Formaldehyde, solutions, flammable [UN1198] [Flammable liquid]
- Formalaz
- Monohydrokepone
- Formaldehyd (CZECH, POLISH)
- CAS-NOCAS_47796
- Formaldehyde, solution (37% to 50%)
- 1HG84L3525
- Formaldehyde (USP)
- EPA Pesticide Chemical Code 043002
- EPA Pesticide Chemical Code 043001
- RCRA waste no. U122
- Paraformaldehyde, polymer
- FORMYL GROUP
- Formaldehyde, solution
- BFV
- Aldehyde formique [ISO-French]
- Formaldehyde [USP]
- Formaldehyd [Czech, Polish]
- Formalin-loesungen [German]
- Aldehyde formique [French]
- Aldeide formica [Italian]
- Aldehyd mravenci [Czech]
- CH2O
- UN 1198
- Fordor
- Polymerised formaldehyde
- Polyoxymethylene glycol
- Caswell No. 633
- Caswell No. 465
- HCHO
- Oplossingen [Dutch]
- Formalina [Italian]
- Formaline [German]
- Formaldehyde polymer
- Formaldehyde (gas)
- UN 2209 (formalin)
- Paraformic aldehyde
- Flo-Mor
- Oilstop, Halowax
- Paraformaldehydum
- Aldehyd mravenci
- Aldacide
- 30525-89-4
- Rcra waste number U122
- Formalin-loesungen
- Dormol
- Oplossingen
- Polyoxymethylene
- Polyformaldehyde
- Aldeide formica
- Formaline
- Formalin 40
- Formaldehyde, gas
- FYDE
- Aldehyde formique
- Formaldehyd
- Formaldehyde solution
- Karsan
- Morbicid
- Lysoform
- Formalina
- Superlysoform
- Oxomethylene
- Methaldehyde
- Formalith
- Fannoform
- Methyl aldehyde
- Oxymethylene
- 50-00-0
- Formic aldehyde
- Paraform
- Oxomethane
- formol
- Methylene oxide
- Paraformaldehyde
- methanal
- formalin
- 104512-63-2
Formaldehyde Identification Summary Frequently Asked Questions (FAQs)
| What’s the formula of formaldehyde? |
|---|
| CH2O |
| How many atoms and what are the elements in the formaldehyde molecule? |
| 4 atom(s) - 2 Hydrogen atom(s), 1 Carbon atom(s), and 1 Oxygen atom(s) |
| How many chemical bonds and what types of bonds are in the formaldehyde structure? |
| 3 bond(s) - 1 non-H bond(s), 1 multiple bond(s), 1 double bond(s), and 1 aldehyde(s) (aliphatic) |
| What’s the molar mass of formaldehyde? |
| 30.02598 g/mol |
| What’s the SMILES format of formaldehyde? |
| C=O |
| What’s the InChI format of formaldehyde? |
| InChI=1S/CH2O/c1-2/h1H2 |
| What’s the InChIKey string of formaldehyde? |
| WSFSSNUMVMOOMR-UHFFFAOYSA-N |
7145
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commercialized into Mol-Instincts database and ChemRTP, ChemEssen, Inc (2024).