1,1'-Oxalyldiimidazole CAS 18637-83-7

Purity 97%+In StockPharmaceutical Standards
CAS No.18637-83-7
Molecular FormulaC8H6N4O2
Molecular Weight190.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1'-Oxalyldiimidazole CAS 18637-83-7 chemical structure

Description

As a certified reference material (CRM), 1,1'-Oxalyldiimidazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

1,1'-Oxalyldiimidazole (CAS 18637-83-7), molecular formula C8H6N4O2 and molecular weight 190.16 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H6N4O2, 1,1'-Oxalyldiimidazole contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 190.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC8H6N4O2
Molecular Weight190.16 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms4

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