2-Ethoxy-3,4-dihydro-2H-pyran

Intermediates

1. Product Name: 3,4-Dihydro-2-ethoxy-2H-pyran ,

Synonyms: 2,3-Dihydro-2-ethoxy-4H-pyran

2. CAS: 103-75-3 EINECS:203-141-8

3. Structure Formula:

4.MF: C₇H₁₂O₂ ， MW：128.17

5.Properties:

BP 42 °C16 mm Hg(lit.)

Density 0.957 at 25 °C(lit.)

Refractive index 1.439

FP 24°C

6. Quality spec:

ITEMS	SPECIFICATION
ITEMS	premium grade	First grade
Appearance	Transparent colorless liquid
Assay %	≥99	≥98
moisture content ％	≤0.2	≤0.3

7.RIDADR : UN 3271 3/PG 3

8.Use:

As intermediate of sulfadiazine; also used as monomer and material for organic synthesis.

Packing: 180kgs/steel drum