Oxalic acid diimidazolide

• Catalog No.: 75749
• CAS Number: 18637-83-7
• M. F.: C8H6N4O2
• M. W.: 190.15884
• Purity: ≥90% (NT)

SYNONYMS

• Title: 草酰基二咪唑
• IUPAC name: bis(1H-imidazol-1-yl)ethane-1,2-dione
• IUPAC Traditional name: bis(imidazol-1-yl)ethane-1,2-dione

DATABASE IDS

• CAS Number: 18637-83-7
• Beilstein Number: 611833
• MDL Number: MFCD00043067

PROPERTIES

• Empirical Formula (Hill Notation): C8H6N4O2
• Grade: technical
• Impurities: ≤10% free imidazole
• Purity: ≥90% (NT)
• Melting Point: 114-116 °C(lit.)
• Melting Point: ~115 °C
• GHS Signal Word: Danger
• GHS Hazard statements: H302-H312-H314
• European Hazard Symbols: Corrosive (C)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• GHS Precautionary statements: P280-P305 + P351 + P338-P310
• RID/ADR: UN 3259 8/PG 3
• Risk Statements: 21/22-34
• Safety Statements: 26-36/37/39-45
• Hazard Class: 8
• UN Number: 3259
• Packing Group: 3
• German water hazard class: 3

DETAILS

Description (English)

Other Notes
Reagent for the activation of carboxylic acids: synthesis of esters, amides, anhydrides, etc.1,2,3; Conversion of oximes into nitriles4; Reagent for oxalylation of carbanions5

Description (简体中文)

Other Notes
羧酸活化试剂：合成酯、酰胺、酸酐等1,2,3；将肟转化为腈4；碳负离子的草酰化试剂5