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RDD044

Imidazole

ReagentPlus®, 99%, Redi-Dri, free-flowing

Synonym(s):

Glyoxaline; 1, 3-diazole, 1,3-Diaza-2,4-cyclopentadiene, Glyoxaline

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Size/SKUAvailabilityPrice
100 g

Available to ship onSeptember 03, 2026fromMILWAUKEE

$54.90
500 g

Available to ship onSeptember 03, 2026fromMILWAUKEE

$167.00
$125.25
1 kg

Available to ship onSeptember 03, 2026fromMILWAUKEE

$294.00
2.5 kg

Estimated to ship onSeptember 30, 2026fromMILWAUKEE

$487.00

About This Item

Linear Formula:
C3H4N2
CAS Number:
Molecular Weight:
68.08
NACRES:
NA.21
UNSPSC Code:
12352005
Beilstein/REAXYS Number:
103853
MDL number:

$54.90


Available to ship onSeptember 03, 2026Details


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vapor pressure

<1 mmHg ( 20 °C)

Quality Segment

product line

ReagentPlus®, Redi-Dri

assay

99%

form

powder

quality

free-flowing

pH

9-11 at 100 g/L (23 °C)

pKa (25 °C)

6.95

bp

256 °C (lit.)

mp

85-92 °C, 88-91 °C (lit.)

SMILES string

c1c[nH]cn1

InChI

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

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

General description

Imidazole is a buffering agent employed in various research applications, with a pH 9 -11, it is often used to maintain a stable pH for protein samples. Imidazole is a heterocyclic compound with a five-membered planar ring that is amphoteric, highly polar, and commonly used for affinity chromatography. Its ability to bind to metal ions makes it particularly useful for purification and separation of proteins.

Application

Excellent for buffers in the range of pH 6.2-7.8
Imidazole is commonly used as a buffer component for purification of the histidine-tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).

Features and Benefits

  • Redi-Dri packaging controls moisture for hygroscopic chemicals that commonly clump
  • Anhydrous powder remains free-flowing and easy to use
  • Safer to handle and weigh out for routine use in lab
  • Eliminates clumps to maintain product moisture and quality

Other Notes

For additional information on our range of Biochemicals, please complete this form.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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1 of 1

This Item
I2021336500I0250
description

ReagentPlus®, 99%, Redi-Dri, free-flowing

description

ReagentPlus®, 99%

description

United States Pharmacopeia (USP) Reference Standard

description

≥99% (titration), crystalline

assay

99%

assay

99%

assay

-

assay

≥99% (titration)

product line

Redi-Dri, ReagentPlus®

product line

ReagentPlus®

product line

-

product line

-

Quality Level

100

Quality Level

200

Quality Level

-

Quality Level

300

form

powder

form

crystalline

form

-

form

crystalline

pH

9-11 at 100 g/L (23 °C)

pH

9-11 at 100 g/L (23 °C)

pH

-

pH

6.2-7.8 (25 °C)

mp

88-91 °C (lit.), 85-92 °C

mp

88-91 °C (lit.)

mp

88-91 °C (lit.)

mp

88-91 °C (lit.)


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Danger

Hazard Classifications

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

Storage Class

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



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