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Imidazole

Catalog No. 56749 Name Sigma Aldrich
CAS Number 288-32-4 Website http://www.sigmaaldrich.com
M. F. C3H4N2 Telephone 1-800-521-8956
M. W. 68.07726 Fax
Purity ≥99.5% (GC) Email
Storage Chembase ID: 89483

SYNONYMS

Title
咪唑
IUPAC name
1H-imidazole
IUPAC Traditional name
Him
Synonyms
Glyoxaline
1,3-二氮杂-2,4-环戊二烯
1,3-Diaza-2,4-Cyclopentadiene
甘恶啉

DATABASE IDS

EC Number 206-019-2
CAS Number 288-32-4
Beilstein Number 103853
PubChem SID 24880370
MDL Number MFCD00005183

PROPERTIES

Antion Traces chloride (Cl-): ≤50 mg/kg
Antion Traces sulfate (SO42-): ≤50 mg/kg
Cation Traces Al: ≤5 mg/kg
Cation Traces As: ≤0.1 mg/kg
Cation Traces Ba: ≤5 mg/kg
Cation Traces Bi: ≤5 mg/kg
Cation Traces Ca: ≤10 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces K: ≤50 mg/kg
Cation Traces Li: ≤5 mg/kg
Cation Traces Mg: ≤5 mg/kg
Cation Traces Mn: ≤5 mg/kg
Cation Traces Mo: ≤5 mg/kg
Cation Traces Na: ≤50 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Sr: ≤5 mg/kg
Cation Traces Zn: ≤5 mg/kg
Empirical Formula (Hill Notation) C3H4N2
Impurities insoluble matter, passes filter test
Impurities ≤0.2% water
λ 0.1 M in H2O
Product Line BioUltra
Purity ≥99.5% (GC)
Absorption Wavelength λ: 260 nm Amax: 0.10
Absorption Wavelength λ: 280 nm Amax: 0.10
pKa 6.95 (25°C)
Boiling Point 256 °C(lit.)
Flash Point 145 °C
Flash Point 293 °F
Melting Point 88-91 °C(lit.)
pH 9.5-11.0 (25 °C, 0.1 M in H2O)
Solubility H2O: soluble0.1 M at 20 °C, clear, colorless
Vapor Pressure <1 mmHg ( 20 °C)
GHS Pictograms GHS05
GHS Pictograms GHS07
GHS Pictograms GHS08
GHS Signal Word Danger
GHS Hazard statements H302-H314-H360D
European Hazard Symbols Toxic Toxic (T)
MSDS Link Download
Personal Protective Equipment Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
GHS Precautionary statements P201-P280-P305 + P351 + P338-P310
RID/ADR UN 2923 8/PG 3
Risk Statements 61-22-34
RTECS NI3325000
Safety Statements 53-26-36/37/39-45
Hazard Class 8
UN Number 2923
Packing Group 3
German water hazard class 1

DETAILS

Description (English)
Application
Excellent for buffers in the range of pH 6.2-7.8
Other Notes
Buffer for assay of horseradish peroxidase1
Description (简体中文)
Application
特别适用于 pH 6.2-7.8 范围内的缓冲液
Other Notes
Buffer for assay of horseradish peroxidase1

REFERENCES