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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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grade

Molecular Biology

Quality Level

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

SMILES string

c1c[nH]cn1

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

InChI

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

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

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


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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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全球贸易项目编号

货号GTIN
56748-250G04061832589329
56748-50G04061832589336