2-ETHOXY-3,4-DIHYDRO-2H-PYRAN
- CAS NO.：103-75-3
- Empirical Formula: C7H12O2
- Molecular Weight: 128.17
- MDL number: MFCD00006561
- EINECS: 203-141-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:25:02
What is 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN?
Chemical properties
Colorless transparent liquid
The Uses of 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN
Stabilizer, intermediate.
Synthesis Reference(s)
The Journal of Organic Chemistry, 42, p. 282, 1977 DOI: 10.1021/jo00422a025
General Description
Colorless liquid. Floats on water.
Reactivity Profile
Ethers, such as 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN can act as bases. They form salts with strong acids and addition complexes with Lewis acids. The complex between diethyl ether and boron trifluoride is an example. Ethers may react violently with strong oxidizing agents. In other reactions, which typically involve the breaking of the carbon-oxygen bond, ethers are relatively inert.
Hazard
Moderate fire risk.
Health Hazard
Contact with liquid irritates eyes. Also irritates skin on prolonged contact.
Safety Profile
Moderately toxic by skin contact. Mildly toxic by ingestion and inhalation. A skin and eye irritant. Flammable liquid when exposed to flame, sparks, and oxidizers. To fight fire, use dry chemical, foam, fog. When heated to decomposition it emits acrid smoke and irritating fumes
Properties of 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN
| Melting point: | 153-155 °C |
| Boiling point: | 42 °C16 mm Hg(lit.) |
| Density | 0.957 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 76 °F |
| storage temp. | 2-8°C |
| form | liquid |
| color | Yellow |
| CAS DataBase Reference | 103-75-3(CAS DataBase Reference) |
| EPA Substance Registry System | 2H-Pyran, 2-ethoxy-3,4-dihydro- (103-75-3) |
Safety information for 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for 2-ETHOXY-3,4-DIHYDRO-2H-PYRAN
New Products
2-Ethoxyphenol Methyl 2-methoxy-5-sulfamoylbenzoate 3,6-Dichloropyridazine Ethyl 2-chloro-2-(2-(4-methoxyphenyl)hydrazono)acetate 3,6-Dichloro-4-Isopropylpyridazine 2-[(2-Ethoxyphenoxy)methyl]oxirane 4-Morpholinoaniline 2-Chloromethyl-6-methyl-pyridine 1-Indanone tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate 2-Pyridinecarboxaldehdye 6-Methyl-2-pyridinemethanol 4-Bromo-2-fluoro-N-methylbenzamide 3-Azetidinecarboxylic acid N-(2-(4-((4-Fluorobenzyl)carbamoyl)-5-hydroxy-6-methoxypyrimidin-2-yl)propan-2-yl)-5-methyl-1,3,4-oxadiazole-2-carboxamide (R)-4-Boc-morpholine-3-carboxylic acid (Required high chiral purity NLT:99.5%) Tetrahydro-3-(2-methyl-2- nitropropyl)-2H-pyran-2-one 3-Bromo-2-fluorobenzonitrile Desoximetasone Boron Triiodide Nicotinic acid RAPAMYCIN Pentachlorobenzonitrile BudesonideRelated products of tetrahydrofuran
![ALPHA-DELTA-UA-[1->3]-GALNAC-4S SODIUM SALT](https://img.chemicalbook.in/CAS/GIF/136144-56-4.gif)
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