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Cas Database |
Name |
1,2-Pentanediol |
EINECS | 226-285-3 |
CAS No. | 5343-92-0 | Density | 0.978 g/cm3 |
PSA | 40.46000 | LogP | 0.13970 |
Solubility | miscible with water | Melting Point |
50.86°C (estimate) |
Formula | C5H12O2 | Boiling Point | 206 °C at 760 mmHg |
Molecular Weight | 104.149 | Flash Point | 104.4 °C |
Transport Information | N/A | Appearance | Clear colourless to slightly yellow oily liquid |
Safety | 24/25 | Risk Codes | 36/38 |
Molecular Structure |
|
Hazard Symbols | N/A |
Synonyms |
pentane-1,2-diol;1,2 Pentandiol; |
Article Data | 89 |
methyl 2-hydroxyvalerate
1,2-pentanediol
Conditions | Yield |
---|---|
With hydrogen at 225℃; under 75007.5 Torr; Temperature; Pressure; | 99.4% |
ethyl 2-hydroxy-n-valerate
1,2-pentanediol
Conditions | Yield |
---|---|
With CuO#NiO; hydrogen at 215℃; under 157516 Torr; Temperature; Pressure; | 99.2% |
Conditions | Yield |
---|---|
With water at 130℃; under 18751.9 Torr; | 91.2% |
With water at 130℃; under 18751.9 Torr; | 90.2% |
With water at 130℃; under 18751.9 Torr; | 90.2% |
Conditions | Yield |
---|---|
With 5%PtO2-Al2O3; hydrogen In ethanol at 0 - 5℃; under 750.075 Torr; for 5h; | A 15% B 80% |
With hydrogen; 5 % platinum dioxide on gamma-aluminum oxide In ethanol at 0 - 5℃; under 750.075 Torr; for 5h; | A n/a B 80% |
With water; hydrogen at 120℃; under 22502.3 Torr; for 4h; chemoselective reaction; |
Conditions | Yield |
---|---|
With hydrogen; water-moist catalyst (coating: 8percent Ru and 1percent Re) In water at 190℃; under 187519 Torr; for 14h; Product distribution / selectivity; | 72.1% |
With hydrogen; 3% Ru 2%Re/C In water at 190℃; under 187519 Torr; for 8h; Product distribution / selectivity; | 64.6% |
Conditions | Yield |
---|---|
Stage #1: furfural With 0.5% Pd/C; hydrogen; acetic acid; scandium tris(trifluoromethanesulfonate) at 100℃; under 7600.51 Torr; for 6h; Autoclave; Stage #2: With methanol; water Reagent/catalyst; Temperature; Pressure; Reflux; | A 14% B 23% C 62% |
carbon dioxide
carbon monoxide
A
methanol
B
propan-1-ol
C
propylene glycol
D
1,4-Pentanediol
E
1 ,5-pentanediol
F
Butane-1,4-diol
G
diethyl ether
H
methane
I
ethanol
J
(+/-)-2-pentanol
K
1.3-butanediol
L
1,2-pentanediol
M
ethane
N
propane
O
Dimethyl ether
P
ethyl methyl ether
Q
2-methyl-propan-1-ol
S
pentan-1-ol
T
1,3-pentanediol
U
acetic acid methyl ester
V
isopropyl alcohol
W
iso-butanol
X
tert-butyl alcohol
Y
butan-1-ol
Z
1,2-dihydroxybutane
Conditions | Yield |
---|---|
With hydrogen; Cu/Co/Al at 260 - 320℃; under 45004.5 - 75007.5 Torr; Conversion of starting material; | A 57.5% B n/a C n/a D n/a E n/a F n/a G n/a H n/a I 28.5% J n/a K n/a L n/a M n/a N n/a O n/a P n/a Q n/a R n/a S n/a T n/a U n/a V n/a W n/a X n/a Y n/a Z n/a |
With hydrogen; Cu/ZnO/Al2O3 at 285 - 300℃; under 45004.5 - 67506.8 Torr; Conversion of starting material; | A 57.5% B n/a C n/a D n/a E n/a F n/a G n/a H n/a I 28.5% J n/a K n/a L n/a M n/a N n/a O n/a P n/a Q n/a R n/a S n/a T n/a U n/a V n/a W n/a X n/a Y n/a Z n/a |
carbon dioxide
carbon monoxide
A
methanol
B
propan-1-ol
C
propylene glycol
D
1,4-Pentanediol
E
1 ,5-pentanediol
F
Butane-1,4-diol
G
diethyl ether
H
ethanol
I
(+/-)-2-pentanol
J
1.3-butanediol
K
1,2-pentanediol
L
Dimethyl ether
M
ethyl methyl ether
N
2-methyl-propan-1-ol
O
2-pentanol
P
pentan-1-ol
Q
1,3-pentanediol
R
acetic acid methyl ester
S
isopropyl alcohol
T
iso-butanol
U
tert-butyl alcohol
V
butan-1-ol
W
1,2-dihydroxybutane
Conditions | Yield |
---|---|
With hydrogen; Zn/Cr/K at 350 - 420℃; under 75007.5 - 135014 Torr; Conversion of starting material; | A 57.5% B n/a C n/a D n/a E n/a F n/a G n/a H 28.5% I n/a J n/a K n/a L n/a M n/a N n/a O n/a P n/a Q n/a R n/a S n/a T n/a U n/a V n/a W n/a |
Conditions | Yield |
---|---|
Stage #1: furfurylacetate With 5%-palladium/activated carbon; hydrogen; acetic acid at 100℃; under 7600.51 Torr; for 6h; Autoclave; Stage #2: With methanol; water Reagent/catalyst; Temperature; Pressure; Reflux; | A 24% B 15% C 56% |
Conditions | Yield |
---|---|
Stage #1: (2-furyl)methyl alcohol With 0.5 % platinum on carbon; W(OTf)6; hydrogen; acetic acid at 150℃; under 7600.51 Torr; for 6h; Autoclave; Stage #2: With methanol; water Reagent/catalyst; Temperature; Pressure; Reflux; | A 24% B 12% C 54% |
With Cu(50),Zn(50) (X%); hydrogen at 170℃; under 112511 - 187519 Torr; for 2h; Reagent/catalyst; Autoclave; | A 26% B 44.2% C 13% |
IUPAC Name: Pentane-1,2-diol
Molecular Formula: C5H12O2
Molecular Weight: 104.15g/mol
EINECS: 226-285-3
Density: 0.978 g/cm3
Flash Point: 104.4 °C
Freely Rotating Bonds: 5
Index of Refraction: 1.443
Molar Refractivity: 28.24 cm3
Molar Volume: 106.4 cm3
Polarizability: 11.19 ×10-24 cm3
Surface Tension: 36.6 dyne/cm
Boiling Point: 206 °C at 760 mmHg
Enthalpy of Vaporization: 51.45 kJ/mol
Vapour Pressure: 0.0575 mmHg at 25 °C
Appearance: pure colorless to light yellow liquid
Solubility : soluble in alcohol, ether and ethyl acetate and other organic solvent
1,2-Pentanediol , its cas register number is 5343-92-0. The chemical synonyms of 1,2-Pentanediol (CAS NO.5343-92-0) are Pentane-1,2-diol . Its product categories are Alcohols ; Monomers ; Polymer Science ; Organic Building Blocks ; Oxygen Compounds ; Polyols . The structure of 1,2-Pentanediol (CAS NO.5343-92-0) is
1,2-Pentanediol (CAS NO.5343-92-0) can be used as fungicide propiconazole intermediate.
Risk Statements: 36/38
36/38: Irritating to eyes and skin
Safety Statements: 24/25
24/25: Avoid contact with skin and eyes
WGK Germany: 1
RTECS: SA0455000
F: 3