The 2H-Pyran, 3, 4-dihydro-2-methoxy-, with the CAS registry number of 4454-05-1, is also known as 3, 4-Dihydro-2-methoxy-2H-pyran. Its EINECS registry number is 224-698-3. This chemical's molecular formula is C₆H₁₀O₂ and molecular weight is 114.14. What's more, its IUPAC name is 2-Methoxy-3, 4-dihydro-2H-pyran. In addition, it must be stored in airtight containers and placed in a dry, ventilated place. Meanwhile, it should be avoided contact with light. This chemical's classification codes are Drug/Therapeutic Agent; Skin/Eye Irritant.

Physical properties about 2H-Pyran, 3, 4-dihydro-2-methoxy- are: (1)ACD/LogP: -0.10; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.1; (4)ACD/LogD (pH 7.4): -0.1; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 21.14; (8)ACD/KOC (pH 7.4): 21.14; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 18.46 Å²; (13)Index of Refraction: 1.451; (14)Molar Refractivity: 31.14 cm³; (15)Molar Volume: 115.6 cm³; (16)Surface Tension: 28.4 dyne/cm; (17)Density: 0.98 g/cm³; (18)Flash Point: 16.7 °C; (19)Enthalpy of Vaporization: 37.03 kJ/mol; (20)Boiling Point: 149.3 °C at 760 mmHg; (21)Vapour Pressure: 5.14 mmHg at 25 °C.

Uses: it is used to produce other chemicals. For example, it is used to produce Pentanedial. The reaction needs reagent cation-exchange resin KU-2 and KU-2-8. Meanwhile, it needs solvent H₂O. The reaction temperature is 20-30 °C. The yield is about 40 %.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes. In addition, this chemical is harmful if swallowed. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: O(C)C1O\C=C/CC1
(2) InChI: InChI=1/C6H10O2/c1-7-6-4-2-3-5-8-6/h3,5-6H,2,4H2,1H3
(3) InChIKey: XCYWUZHUTJDTGS-UHFFFAOYAG

The toxicity data is as follows: