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Hypophosphorous Acid
CAS: 6303-21-5 | H3O2P
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
6303-21-5
Molecular Formula:
H3O2P
Molecular Mass:
66.00 g/mol
Names and Synonyms:
Hypophosphorous Acid
Phosphinic acid
Phosphine oxide, hydroxy-
Hypophosphorous acid
Phosphonous acid
Hydroxyphosphine oxide
Dihydroxyphosphine
Identifiers:
SMILES:
O=[PH2]O
InChI:
InChI=1S/H3O2P/c1-3-2/h3H2,(H,1,2)
Key Properties
Melting Point
23-25 °C
CAS Common Chemistry
Density
1.48 g/cm³
CAS Common Chemistry
Spectral Data
NMR, IR, and Mass spectral data
1H NMR
13C NMR
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 66.00 g/mol | CAS Common Chemistry |
| 65.996 g/mol | RDKit | |
| 65.987065966 g/mol | RDKit | |
| Density | 1.48 g/cm³ | CAS Common Chemistry |
| 1.479 g/cm3 @ Temp: 20 °C | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Hypophosphorous_acid | CAS Common Chemistry |
| Canonical SMILES | O=[PH2]O | CAS Common Chemistry |
| InChI | InChI=1S/H3O2P/c1-3-2/h3H2,(H,1,2) | CAS Common Chemistry |
| InChI Key | InChIKey=ACVYVLVWPXVTIT-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 23-25 °C | CAS Common Chemistry |
| Name | Phosphinic acid | CAS Common Chemistry |
| Hypophosphorous acid | CAS Common Chemistry | |
| Heavy Atom Count | 3 | RDKit |
| Hydrogen Bond Acceptors | 1 | RDKit |
| Hydrogen Bond Donors | 1 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 37.3 Ų | RDKit |
| LogP | -0.35000000000000003 | RDKit |
| Molar Refractivity | 12.615299999999998 | RDKit |
