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Key Documents

56749

Sigma-Aldrich

Imidazolo

BioUltra, ≥99.5% (GC)

Sinonimo/i:

1,3-diaza-2,4-ciclopentadiene, Gliossalina

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About This Item

Formula empirica (notazione di Hill):
C3H4N2
Numero CAS:
Peso molecolare:
68.08
Beilstein:
103853
Numero CE:
Numero MDL:
Codice UNSPSC:
12352005
eCl@ss:
39161001
ID PubChem:
NACRES:
NA.25

Tensione di vapore

<1 mmHg ( 20 °C)

Livello qualitativo

Nome Commerciale

BioUltra

Saggio

≥99.5% (GC)

Forma fisica

powder or crystals

Impurezze

insoluble matter, passes filter test
≤0.2% water

Residuo alla calcinazione (900 °C)

≤0.05%

pH

9.5-11.0 (25 °C, 0.1 M in H2O)

pKa (25 °C)

6.95

P. eboll.

256 °C (lit.)

Punto di fusione

88-91 °C (lit.)

Solubilità

H2O: 0.1 M at 20 °C, clear, colorless

Anioni in tracce

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

Cationi in tracce

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

Assorbanza UV

λ: 260 nm Amax: 0.10
λ: 280 nm Amax: 0.10

Stringa SMILE

c1c[nH]cn1

InChI

1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
RAXXELZNTBOGNW-UHFFFAOYSA-N

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Applicazioni

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.
Ottimo per tamponi nell′intervallo di pH 6,2-7,8

Altre note

Buffer for assay of horseradish peroxidase

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

293.0 °F - closed cup

Punto d’infiammabilità (°C)

145 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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