792527
Imidazole
anhydrous grade, ACS reagent grade, ≥99%, Redi-Dri™, free-flowing, solid
동의어(들):
1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
C3H4N2
CAS 번호:
Molecular Weight:
68.08
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
206-019-2
MDL number:
Beilstein/REAXYS Number:
103853
Assay:
≥99%
Form:
solid
제품 이름
Imidazole, anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
Quality Segment
grade
ACS reagent, anhydrous
vapor pressure
<1 mmHg ( 20 °C)
product line
Redi-Dri™
assay
≥99%
form
solid
quality
free-flowing
impurities
≤0.2% water
ign. residue
≤0.1%
pH
9.5-11.0 (25 °C, 5% in H2O)
pKa (25 °C)
6.95
bp
256 °C (lit.)
mp
88-91 °C (lit.)
cation traces
Fe: ≤0.001%
SMILES string
c1c[nH]cn1
InChI
1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
InChI key
RAXXELZNTBOGNW-UHFFFAOYSA-N
Application
Excellent for buffers in the range of pH 6.2-7.8
Imidazole can be used as a proton transfer agent in the synthesis of porous organic polymers because of its amphiprotic nature and fast proton transfer behavior.
Imidazole can be used as a catalyst in the following
Imidazole can be used as a catalyst in the following
- Silylation of alcohols, carboxylic acids, and amines in the presence of silyl chloride in DMF.
- To prepare acid chlorides from the corresponding carboxylic acids and phosgene.
- Imidazole-PPh3/I2 catalytic system used in the conversion of alcohols into iodides.
- Imidazole-PPh3/I2 is used in the diol deoxygenation reaction.
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C
저장 등급
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 2
flash_point_f
293.0 °F - closed cup
flash_point_c
145 °C - closed cup