Products Categories
| CAS No.: | 3393-45-1 |
|---|---|
| Name: | 5,6-DIHYDRO-2H-PYRAN-2-ONE |
| Molecular Structure: | |
|
|
|
| Formula: | C5H6O2 |
| Molecular Weight: | 98.1014 |
| Synonyms: | 2-Pentenoicacid, 5-hydroxy-, d-lactone (6CI,7CI);5,6-Dihydro-a-pyrone;d-2-Pentenolide; |
| EINECS: | -0 |
| Density: | 1.12 g/cm3 |
| Boiling Point: | 233.723 °C at 760 mmHg |
| Flash Point: | 89.106 °C |
| Hazard Symbols: | R10:Flammable.; |
| Risk Codes: | 10 |
| Safety: | 23-24/25 |
| Transport Information: | UN 1224 3/PG 3 |
| PSA: | 26.30000 |
| LogP: | 0.48950 |
- 483366-12-7(2S,4R)-1-Boc-2-cyano-4-hydroxypyrrolidine
- 361456-36-2METHYL (R)-(+)-ISOCYANATO-3-PHENYLPROPI&
- 5156-58-1N-(1-Benzyl-4-pipperidinyl)-N-phenylpropanamide HCl
- 81281-59-67-Benzylideneaminotheophylline
- 50288-62-5threo-Phenyl-2-piperidyl acetamide
- 82993-81-5D-threo-Ritalinic acid hydrochloride
- 47087-37-6Z-D-Glu-OMe
- 73441-42-6METHYL-5-CHLORO-2,2-DIMETHYLVALERATE
- 68439-39-4Poly(oxy-1,2-ethanediyl), alpha-(2-ethylhexyl)-omega-hydroxy-,
- 852475-26-4MC1568
What can I do for you?
Get Best Price
Specification
The 2H-Pyran-2-one,5,6-dihydro-, with the CAS registry number 3393-45-1, is also known as 5,6-Dihydro-2-pyranone. It belongs to the product categories of API intermediates; Building Blocks; Heterocyclic Building Blocks; Pyrans. This chemical's molecular formula is C5H6O2 and molecular weight is 98.1. What's more, its systematic name is 5,6-dihydro-2H-pyran-2-one. It is stable at common pressure and temperature, and it should be sealed and stored in a cool, ventilated and dry place. What's more, it should be protected from light.
Physical properties of 2H-Pyran-2-one,5,6-dihydro- are: (1)ACD/LogP: -0.08; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.08; (4)ACD/BCF (pH 5.5): 1; (5)ACD/KOC (pH 5.5): 21.62; (6)#H bond acceptors: 2; (7)#H bond donors: 0; (8)#Freely Rotating Bonds: 0; (9)Polar Surface Area: 26.3 Å2; (10)Index of Refraction: 1.47; (11)Molar Refractivity: 24.39 cm3; (12)Molar Volume: 87.2 cm3; (13)Surface Tension: 35.9 dyne/cm; (14)Density: 1.123 g/cm3; (15)Flash Point: 89.1 °C; (16)Enthalpy of Vaporization: 47.04 kJ/mol; (17)Boiling Point: 233.7 °C at 760 mmHg; (18)Vapour Pressure: 0.055 mmHg at 25°C.
Preparation: this chemical can be prepared by 3,6-dihydro-2H-pyran at the temperature of 60 - 70 °C. This reaction will need reagent pyridinium chlorochromate and solvent CH2Cl2 with the reaction time of 7 hours. The yield is about 70%.
.jpg)
Uses of 2H-Pyran-2-one,5,6-dihydro-: it can be used to produce 2-methoxy-tetrahydro-furan-2-carboxylic acid methyl ester by heating. It will need reagent concentrated sulfuric acid with the reaction time of 17 hours. The yield is about 88%.
.jpg)
When you are using this chemical, please be cautious about it as the following:
It is flammable. You should not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer). When using it, you should avoid contacting with skin and eyes.
You can still convert the following datas into molecular structure:
(1)SMILES: O=C\1OCC/C=C/1
(2)InChI: InChI=1S/C5H6O2/c6-5-3-1-2-4-7-5/h1,3H,2,4H2
(3)InChIKey: QBDAFARLDLCWAT-UHFFFAOYSA-N