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Merck
CN

56748

咪唑

BioUltra, Molecular Biology, ≥99.5% (GC)

别名:

1,3-二氮杂-2,4-环戊二烯, 甘恶啉

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关于此项目

经验公式(希尔记法):
C3H4N2
化学文摘社编号:
分子量:
68.08
NACRES:
NA.25
PubChem Substance ID:
eCl@ss:
39161001
UNSPSC Code:
12352005
EC Number:
206-019-2
MDL number:
Beilstein/REAXYS Number:
103853
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产品名称

咪唑, BioUltra, Molecular Biology, ≥99.5% (GC)

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

InChI

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

SMILES string

c1c[nH]cn1

grade

Molecular Biology

vapor pressure

<1 mmHg ( 20 °C)

product line

BioUltra

assay

≥99.5% (GC)

form

flakes
powder or crystals

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
≤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 (SO42-): ≤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 Amax: 0.10
λ: 280 nm Amax: 0.10

Quality Level

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Application

咪唑可用于制备在25℃下pH范围6.2-7.8的缓冲液。它被推荐作为辣根过氧化物酶测定缓冲液的一个组分,并作为螯合剂用于各种二价阳离子的结合。咪唑可用于从二价阳树脂中洗脱含组氨酸的蛋白质(SigmaP6611,HisSelect.-HC镍亲和凝胶),也可用于检测蛋白质的SDS-PAGE凝胶的反向染色。
特别适用于 pH 6.2-7.8 范围内的缓冲液

Other Notes

Review: As RNase model

signalword

Danger

Hazard Classifications

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

存储类别

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


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Review: As RNase model.
R. Breslow
Accounts of Chemical Research, 24, 317-317 (1991)
Aviva Levina et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(11), 3609-3619 (2013-01-31)
An anti-metastatic drug, NAMI-A ((ImH)[Ru(III) Cl4 (Im)(dmso)]; Im=imidazole, dmso=S-bound dimethylsulfoxide), and a cytotoxic drug, KP1019 ((IndH)[Ru(III) Cl4 (Ind)2 ]; Ind=indazole), are two Ru-based anticancer drugs in human clinical trials. Their reactivities under biologically relevant conditions, including aqueous buffers, protein solutions
Eleonora Petryayeva et al.
Langmuir : the ACS journal of surfaces and colloids, 29(3), 977-987 (2013-01-10)
Methods have been developed for the solid-phase detection of nucleic acids using mixed films of quantum dots (QDs) and oligonucleotide probes in microtiter plates. Polystyrene microwells were functionalized with multidentate imidazole ligands to immobilize QDs. Oligonucleotide hybridization was transduced using
Tomotsugu Awano et al.
Journal of bacteriology, 196(1), 140-147 (2013-10-29)
The genome of Thermococcus kodakarensis, along with those of most Thermococcus and Pyrococcus species, harbors five paralogous genes encoding putative α subunits of nucleoside diphosphate (NDP)-forming acyl coenzyme A (acyl-CoA) synthetases. The substrate specificities of the protein products for three
Jason Z Vlahakis et al.
Bioorganic & medicinal chemistry, 18(16), 6184-6196 (2010-07-17)
We have previously reported that tetrazolium salts were both potent and specific inhibitors of Plasmodium replication, and that they appear to interact with a parasite component that is both essential and conserved. The use of tetrazolium salts in vivo is

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