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PHR1180

Supelco

Imidazole

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):
1,3-Diaza-2,4-cyclopentadiene, Glyoxaline
Empirical Formula (Hill Notation):
C3H4N2
CAS Number:
Molecular Weight:
68.08
Beilstein:
103853
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

Quality Level

grade

certified reference material
pharmaceutical secondary standard

vapor pressure

<1 mmHg ( 20 °C)

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

pKa (25 °C)

6.95

bp

256 °C (lit.)

mp

88-91 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

pharmacopeia traceability

traceable to PhEur I0086000
traceable to USP 1336500

storage temp.

2-30°C

SMILES string

c1c[nH]cn1

InChI

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

InChI key

RAXXELZNTBOGNW-UHFFFAOYSA-N

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General description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
Imidazole may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by high performance liquid chromatography (HPLC).
Excellent for buffers in the range of pH 6.2-7.8

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAC4011 in the slot below. This is an example certificate only and may not be the lot that you receive.

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

Flash Point(F)

293.0 °F - closed cup

Flash Point(C)

145 °C - closed cup

Certificate of Analysis

Certificate of Origin

Determination of methylparaben, propylparaben, clotrimazole and its degradation products in topical cream by RP-HPLC
Solich P, et al.
Chromatographia, 56(1), S181-S184 (2002)
Chromatographic determination of clotrimazole, ketoconazole and fluconazole in pharmaceutical formulations
Abdel-Moety EM, et al.
Il Farmaco (Societa Chimica Italiana : 1989), 57(11), 931-938 (2002)
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
Joy Rathjen et al.
Reproduction, fertility, and development, 26(5), 703-716 (2013-06-14)
Human embryonic stem (ES) cells have been proposed as a renewable source of pluripotent cells that can be differentiated into various cell types for use in research, drug discovery and in the emerging area of regenerative medicine. Exploitation of this
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

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