270970
Pyridine
anhydrous, 99.8%
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크기 선택
제품정보 (DICE 배송 시 비용 별도)
실험식(Hill 표기법):
C5H5N
CAS 번호:
Molecular Weight:
79.10
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
EC Number:
203-809-9
Beilstein/REAXYS Number:
103233
MDL number:
Assay:
99.8%
Grade:
anhydrous
Vapor pressure:
10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
grade
anhydrous
Quality Level
vapor pressure
10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
assay
99.8%
form
liquid
autoignition temp.
899 °F
impurities
<0.003% water, <0.005% water (100 mL pkg)
evapn. residue
<0.0005%
color
colorless
refractive index
n20/D 1.509 (lit.)
pH
~8.81 (20 °C)
mp
−42 °C (lit.)
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General description
Pyridine is a basic N-heterocyclic compound. It acts as nitrogen donor ligand and forms many metal-pyridine complexes. Its complexes having tetrahedral and octahedral geometries can be differentiated by infra-red spectral investigations.
Application
Pyridine (py) may be used in the preparation of vanadium oxide nanoparticles and iron benzenedicarboxylates, Fe(OH)(BDC)(py)0.85 (BDC = 1,4-benzenedicarboxylate, py = pyridine). It may be employed as catalyst in Knoevenagel condensation reaction.
Pyridine may be used as a base for the conversion of:
It may also be used to catalyze the borylation reaction of haloarenes to form arylboronates without using transition metal catalysts.
- Alkyltrichlorosilanes to trimethoxyalkylsilanes, which are used as precursors for preparing alkylsilicates.
- 1-Indanone to 1-indanone oxime, which can undergo reductive ring-expansion to form tetrahydroquinoline.
It may also be used to catalyze the borylation reaction of haloarenes to form arylboronates without using transition metal catalysts.
Packaging
signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
저장 등급
3 - Flammable liquids
flash_point_f
68.0 °F - closed cup
flash_point_c
20 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Tooran Khazraie et al.
Biotechnology for biofuels, 10, 47-47 (2017-03-03)
Hot water hydrolysis process is commercially applied for treating wood chips prior to pulping or wood pellet production, while it produces hydrolysis liquor as a by-product. Since the hydrolysis liquor is dilute, the production of value-added materials from it would
Pyridine-catalyzed radical borylation of aryl halides
Zhang L & Jiao L
Journal of the American Chemical Society, 139(2), 607-610 (2017)
Preparation of Diisopropylammonium Bis(catecholato)cyclohexylsilicate
Kingson L, et al
Organic Syntheses, 94, 16-16 (2017)
DIBALH-Mediated Reductive Ring-Expansion Reaction of Cyclic Ketoxime
Taku I, et al
Organic Syntheses, 93, 1-1 (2016)
Maryam Shamloo et al.
Scientific reports, 7(1), 9133-9133 (2017-08-24)
Predictions of global increased temperature are for 1.8-4 °C by 2100. Increased temperature as an abiotic stress may exert a considerable influence on the levels of secondary metabolites in plants. These secondary metabolites may possibly exert biological activities beneficial in prevention
문서
Effective in key synthesis reactions like Knoevenagel condensation, thalidomide synthesis, and Suzuki coupling for sustainable chemical transformations.
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