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Imidazole

Catalog No. 56748 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

PubChem SID 24880368
EC Number 206-019-2
CAS Number 288-32-4
Beilstein Number 103853
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
Grade for molecular biology
Impurities DNases, none detected
Impurities RNases, none detected
Impurities insoluble matter, passes filter test
Impurities phosphatases, none detected
Impurities proteases, none detected
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
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
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

DETAILS

Description (English)
Application
Excellent for buffers in the range of pH 6.2-7.8
Other Notes
Review: As RNase model1
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
Review: As RNase model1

REFERENCES