56749

Imidazole

BioUltra, ≥99.5% (GC)

• Synonyma: 1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
• Lineární vzorec: C₃H₄N₂
• Číslo CAS: 288-32-4
• Molekulová hmotnost: 68.08
• NACRES: NA.25
• PubChem Substance ID: 57651597
• eCl@ss: 39161001
• UNSPSC Code: 12352005
• EC Number: 206-019-2
• MDL number: MFCD00005183
• Beilstein/REAXYS Number: 103853

Vlastnosti

• vapor pressure: <1 mmHg ( 20 °C)
• Quality Segment: 200
• product line: BioUltra
• assay: ≥99.5% (GC)
• form: powder or crystals
• impurities: insoluble matter, passes filter test, ≤0.2% water
• ign. residue (900 °C): ≤0.05%
• pH: 9.5-11.0 (25 °C, 0.1 M in H₂O)
• pKa (25 °C): 6.95
• bp: 256 °C (lit.)
• mp: 88-91 °C (lit.)
• solubility: H₂O: 0.1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
• λ: 0.1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.10, λ: 280 nm A_max: 0.10
• SMILES string: c1c[nH]cn1
• application(s): advanced drug delivery
• InChI: 1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
• InChI key: RAXXELZNTBOGNW-UHFFFAOYSA-N

Popis

Application

Excellent for buffers in the range of pH 6.2-7.8

Imidazole can be used to prepare buffers in the pH range of 6.2-7.8 at 25°C. It is recommended as a component of a buffer for assay of horseradish peroxidase and as chelator for the binding of various divalent cations. Imidazole can be used for the elution of histidine containing proteins from divalent cation resins (Sigma P6611, HisSelect.-HC Nickel affinity gel) and can also be used in reverse staining of SDS-PAGE gels for detection of proteins.

Other Notes

Buffer for assay of horseradish peroxidase

Buffer for assay of horseradish peroxidasecitation

Bezpečnostní informace

• pictograms: GHS08,GHS05,GHS07
• signalword: Danger
• hcodes: H302,H314,H360D
• pcodes: P260 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C
• Skladovací třída: 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
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges