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| CAS No.: | 143-24-8 |
|---|---|
| Name: | Tetraethylene glycol dimethyl ether |
| Article Data: | 11 |
| Cas Database | |
| Molecular Structure: | |
|
|
|
| Formula: | C10H22O5 |
| Molecular Weight: | 222.282 |
| Synonyms: | AnsulEther 181AT;Bis[2-(2-methoxyethoxy)ethyl] ether;Dimethoxytetraethyleneglycol;Dimethoxytetraglycol;Ether,bis[2-(2-methoxyethoxy)ethyl];Glyme 5;Hisolve MTEM;Methyltetraglyme;Nissan Uniox MM 200;TEGDME;2,5,8,11,14-Pentaoxapentadecane;Tetraglyme; |
| EINECS: | 205-594-7 |
| Density: | 0.986 g/cm3 |
| Melting Point: | -30 °C(lit.) |
| Boiling Point: | 275.3 °C at 760 mmHg |
| Flash Point: | 140.6 °C |
| Solubility: | soluble in water |
| Appearance: | clear liquid |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 19-43 |
| Safety: | 36-24 |
| PSA: | 46.15000 |
| LogP: | 0.32900 |
- 14324-82-4Copper,bis(1,1,1-trifluoro-2,4-pentanedionato-kO2,kO4)-
- 14324-83-5Nickel,bis(1,1,1-trifluoro-2,4-pentanedionato-kO,kO')- (9CI)
- 14324-99-3Manganese,tris(2,2,6,6-tetramethyl-3,5-heptanedionato-kO3,kO5)-, (OC-6-11)-
- 143250-10-6Pyrazine,2-bromo-5-methoxy-
- 14325-05-4Stannate(2-),dichloro[7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-kN21,kN22,kN23,kN24]-, hydrogen (1:2), (OC-6-13)-
- 14325-36-1L-Ornithine,N5-(aminocarbonyl)-N2-benzoyl-, methyl ester
- 143254-82-4[1,4'-Bipiperidine]-1'-carbonylchloride, hydrochloride (1:1)
- 143257-97-04-Piperidinecarboxamide,N-ethyl-1-hexyl-N-methyl-4-phenyl-
- 143259-56-71H-Indole-1-carboxylicacid, 3-bromo-, 1,1-dimethylethyl ester
- 143262-17-31H-Indole-1-carboxylicacid, 7-bromo-2,3-dihydro-, 1,1-dimethylethyl ester
- 17454-48-7, 62623-99-8
cyclohexano-15-crown-5 ether
- 74-88-4
methyl iodide
A
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| Stage #1: cyclohexano-15-crown-5 ether With potassium mirror In tetrahydrofuran at 20℃; for 0.416667h; Stage #2: methyl iodide In tetrahydrofuran Further stages.; | A 15% B 38% C 29% |
- 638-56-2
1,11-dichloro-3,6,9-trioxaundecane
- 124-41-4
sodium methylate
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| With methanol |
| Conditions | Yield |
|---|---|
| With sodium hydroxide; sulfuryl dichloride a) 10 deg C, 1 h, b) 100 deg C, 1 h; | 0.70 mol |
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| With Iodine monochloride In benzene at 24.9℃; Equilibrium constant; |
| Conditions | Yield |
|---|---|
| zuletzt bei 110-115grad; |
A
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| With RG7 In toluene at 25℃; Equilibrium constant; |
A
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| With RG7 In toluene at 25℃; Equilibrium constant; other resins; |
- 2426-08-6
glycidyl n-butyl ether
- 33100-27-5
15-crown-5
- 74-88-4
methyl iodide
A
- 112-49-2
Triethylene glycol dimethyl ether
B
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| Stage #1: 15-crown-5 With potassium In tetrahydrofuran at 25℃; for 0.416667h; Stage #2: glycidyl n-butyl ether In tetrahydrofuran Stage #3: methyl iodide In tetrahydrofuran Title compound not separated from byproducts; |
- 106-92-3
Allyl glycidyl ether
- 33100-27-5
15-crown-5
- 74-88-4
methyl iodide
A
- 930-37-0
glycidyl methyl ether
B
- 143-24-8
Tetraethylene glycol dimethyl ether
| Conditions | Yield |
|---|---|
| Stage #1: 15-crown-5 With potassium In tetrahydrofuran at 25℃; for 0.416667h; Stage #2: Allyl glycidyl ether In tetrahydrofuran Stage #3: methyl iodide In tetrahydrofuran Further byproducts given. Title compound not separated from byproducts; |
- 75-21-8
oxirane
- 115-10-6
Dimethyl ether
A
- 110-71-4
1,2-dimethoxyethane
B
- 112-49-2
Triethylene glycol dimethyl ether
C
- 111-96-6
diethylene glycol dimethyl ether
D
- 143-24-8
Tetraethylene glycol dimethyl ether
E
- 1191-87-3
pentaglyme
| Conditions | Yield |
|---|---|
| With boron trifluoride dimethyl etherate In polyethyleneglycol dimethyl ether at 50 - 80℃; under 6750.68 - 10501.1 Torr; for 0.0333333h; Product distribution / selectivity; | A 18.6 - 36.4 %Chromat. B 7.5 - 15.4 %Chromat. C 15.6 - 34.8 %Chromat. D 1.7 - 7.6 %Chromat. E 0 - 2.6 %Chromat. |
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Chemistry
Molecular Structure of 2,5,8,11,14-Pentaoxapentadecane (CAS NO.143-24-8):
IUPAC Name: 1-(2-Methoxyethoxy)-2-[2-(2-methoxyethoxy)ethoxy]ethane
Molecular Formula: C10H22O5
Formula Weight: 222.28
Empirical Formula: C10H22O5
Molecular Weight: 222.2787
H bond acceptors: 5
H bond donors: 0
#Freely Rotating Bonds: 12
Polar Surface Area: 46.15 Å2
Index of Refraction: 1.42
Molar Refractivity: 57.1 cm3
Molar Volume: 225.4 cm3
Surface Tension: 30.1 dyne/cm
Density: 0.986 g/cm3
Flash Point: 140.6 °C
Enthalpy of Vaporization: 49.31 kJ/mol
Boiling Point: 275.3 °C at 760 mmHg
Vapour Pressure: 0.00862 mmHg at 25°C
Melting Point: -30 °C(lit.)
Water Solubility: Soluble
InChI
InChI=1/C10H22O5/c1-11-3-5-13-7-9-15-10-8-14-6-4-12-2/h3-10H2,1-2H3
Smiles
O(CCOCCOC)CCOCCOC
Classification Code: Reproductive Effect; Skin / Eye Irritant
Toxicity Data With Reference
| 1. | eye-rbt 500 mg | AJOPAA American Journal of Ophthalmology. 29 (1946),1363. | ||
| 2. | orl-rat LD50:5140 mg/kg | JIHTAB Journal of Industrial Hygiene and Toxicology. 23 (1941),259. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Mildly toxic by ingestion. Experimental reproductive effects. An eye irritant. Many glycol ethers are suspected of having dangerous human reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes. See also Glycol ethers.
Hazard Codes: 
Xi
Risk Statements: 19: May form explosive peroxides
43: May cause sensitization by skin contact
Safety Statements: 36: Wear suitable protective clothing
24: Avoid contact with skin
WGK Germany: 1
RTECS: SB0400000
Specification
2,5,8,11,14-Pentaoxapentadecane , with CAS number of 143-24-8, can be called Tetraethylene glycol dimethyl ether ; Ether,bis(2-(2-methoxyethoxy)ethyl) ; 1,11-dimethoxy-3,6,9-trioxa-undecane ; Ether, bis[2-(2-methoxyethoxy)ethyl] . 2,5,8,11,14-Pentaoxapentadecane (CAS NO.143-24-8) is a colorless clear liquid and should store in a cool dry place. It is air sensitive.