8.02971
3,4-Dihydro-2H-pyran
for synthesis
别名:
3,4-Dihydro-2H-pyran
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关于此项目
经验公式（希尔记法）:
C5H8O
化学文摘社编号:
分子量:
84.12
UNSPSC Code:
12352005
EC Index Number:
203-810-4
NACRES:
NA.22
MDL number:
产品名称
3,4-Dihydro-2H-pyran, for synthesis
SMILES string
O1CCCC=C1
InChI
1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
InChI key
BUDQDWGNQVEFAC-UHFFFAOYSA-N
vapor pressure
77.8 hPa ( 20 °C)
assay
≥98.0% (GC)
form
liquid
autoignition temp.
240 °C
potency
>4000 mg/kg LD50, oral (Rat)
expl. lim.
1.1-13.8 % (v/v)
pH
7 (20 °C, 5 g/L in H2O)
bp
85.5 °C/1013 hPa
mp
-70 °C
transition temp
flash point -9 °C
solubility
7.7 g/L
density
0.929 g/cm3 at 20 °C
storage temp.
2-30°C
Quality Level
Analysis Note
Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.926 - 0.929
Water (GC): ≤ 0.50 % (a/a)
Identity (IR): passes test
Density (d 20 °C/ 4 °C): 0.926 - 0.929
Water (GC): ≤ 0.50 % (a/a)
Identity (IR): passes test
Application
- 1, 5-Pentanediol production from 3, 4-dihydro-2H-pyran: A novel method for synthesizing bio-based 1,5-pentanediol from 3,4-dihydro-2H-pyran is explored, highlighting its potential industrial application. (Zhao et al., 2024).
signalword
Danger
Hazard Classifications
Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B
supp_hazards
存储类别
3 - Flammable liquids
wgk
WGK 3
flash_point_f
5.0 °F - closed cup
flash_point_c
-15 °C - closed cup
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