CAS No.696-59-3,2,5-Dimethoxytetrahydrofuran Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	696-59-3
Name:	2,5-Dimethoxytetrahydrofuran
Article Data:	12

Formula:	C₆H₁₂O₃
Molecular Weight:	132.159
Synonyms:	2,5-Bis(methyloxy)tetrahydrofuran;Dimethoxytetrahydrofuran;NSC 7911;Tetrahydro-2,5-dimethoxyfuran;
EINECS:	211-797-1
Density:	1.02 g/cm³
Melting Point:	-45 °C
Boiling Point:	145.7 °C at 760 mmHg
Flash Point:	35 °C
Solubility:	350 g/L (20 °C) in water
Appearance:	Colorless to light yellow liquid
Hazard Symbols:	Xn, Xi
Risk Codes:	10-36/37/38-36-20/21
Safety:	26-36-36/37/39-16
Transport Information:	UN 1993 3/PG 3
PSA:	27.69000
LogP:	0.74180

Synthetic route

: 67-56-1
methanol

: 79668-89-6
(1E,3E)-1,4-Bis-trimethylsilanyloxy-buta-1,3-diene

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

Conditions

Conditions	Yield
With hydrogenchloride at -70 - -65℃;	56%

: 67-56-1
methanol

: 1165952-91-9
cyclohexa-1,3-diene

A: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

B: 6922-39-0
succinaldehyde bis(dimethyl acetal)

C: 56681-97-1
4,4-dimethoxybutanal

Conditions

Conditions	Yield
With 2,3-dimercapto-succinic acid; ozone 1) -78 deg C; Yield given. Multistep reaction. Yields of byproduct given;

...Expand

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 5334-41-8
5-amino-4-cyano-1-methylpyrazole

: 146885-48-5
4-cyano-1-methyl-5-(1H-pyrrol-1-yl)-1H-pyrazole

Conditions

Conditions	Yield
With acetic acid for 0.5h; Heating;	100%
In acetic acid for 0.5h; Heating;	95%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 2857-97-8
trimethylsilyl bromide

: 86428-39-9
1,4-Dibromo-1,4-dimethoxy-butane

Conditions

Conditions	Yield
	100%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 16029-98-4
trimethylsilyl iodide

: 86428-40-2
1,4-Diiodo-1,4-dimethoxy-butane

Conditions

Conditions	Yield
	100%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 108-98-5
thiophenol

: 53480-95-8
1,1,4,4-tetrakis(phenylthio)butane

Conditions

Conditions	Yield
With hydrogenchloride for 19.5h;	100%
With hydrogenchloride at 25℃; for 7.5h; Yield given;

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 62-53-3
aniline

: 635-90-5
1-phenylpyrrole

Conditions

Conditions	Yield
With bismuth (III) nitrate pentahydrate at 90℃; for 0.0833333h; Microwave irradiation; neat (no solvent);	100%
With bismuth (III) nitrate pentahydrate at 20℃; for 0.0833333h; Sonication; Neat (no solvent);	99%
With copper dichloride In water Reflux;	99%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 100-46-9
benzylamine

: 2051-97-0
1-benzyl-1H-pyrrole

Conditions

Conditions	Yield
In pyridine; acetic acid Heating;	100%
With phosphorus pentoxide In toluene at 110℃; for 0.166667h;	96%
With water at 140℃; for 0.333333h; Paal-Knorr pyrrole synthesis; Microwave irradiation;	92%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 70-55-3
toluene-4-sulfonamide

: 17639-64-4
N-p-toluenesulfonylpyrrole

Conditions

Conditions	Yield
With phosphorus pentoxide In toluene at 110℃; for 0.333333h;	100%
With scandium tris(trifluoromethanesulfonate) In 1,4-dioxane at 100℃; for 0.666667h; Clauson-Kaas condensation;	95%
With trifluorormethanesulfonic acid In dichloromethane at 20℃; for 2h;	90%

: 696-59-3
cis,trans-2,5-dimethoxytetrahydrofuran

: 1635-61-6
5-chloro-2-nitroaniline

: 311807-83-7
1H–1–(5–chloro–2–nitrophenyl)pyrrole

Conditions

Conditions	Yield
With 4-chlorpyridine hydrochloride In 1,4-dioxane Clauson-Kaas Synthesis; Reflux;	100%
In acetic acid for 1h; Heating;	95%
With acetic acid for 1.5h; Reflux;	92%

Raw Materials

67-56-1

Downstream Products

111-32-0

638-65-3

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Chemistry

MF: C₆H₁₂O₃
MW: 132.16
EINECS: 211-797-1
mp: -45 °C
bp: 145-147 °C(lit.)
density: 1.023 g/mL at 20 °C(lit.)
refractive index: n20/D 1.418
Fp: 95 °F
storage temp: Flammables area
Water Solubility: 350 g/L (20 ^o_C)
BRN: 104261

Toxicity Data With Reference

1、RTECS#: CAS# 696-59-3: None listed
2、LD50/LC50: RTECS: Not available. Other: Inhalation, rat: LC50 > 6.2mg/l/4H Oral, rat: LD50 = 2040 mg/kg Skin, rabbit: LD50 > 400 mg/kg
3、Carcinogenicity: 2,5-Dimethoxytetrahydrofuran, mixture of cis- and trans isomers - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
4、Other: The toxicological properties have not been fully investigated.

Safety Profile

Hazard Codes: Xi,Xn
Risk Statements: 10-36/37/38-36-20/21
Safety Statements: 26-36-36/37/39-16
RIDADR: UN 1993 3/PG 3
WGK Germany: 1
HazardClass: 3
PackingGroup: III
HS Code: 29321900 .

Specification

Handling and Storage of 2,5-DIMETHOXYTETRAHYDROFURAN
1、Handling: Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Take precautionary measures against static discharges. Use only in a chemical fume hood.
2、Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.

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