12-Crown-4

• Catalog No.: 28122
• CAS Number: 294-93-9
• M. F.: C8H16O4
• M. W.: 176.21024
• Purity: ≥98.0% (GC)

SYNONYMS

• Title: 12-冠醚-4
• IUPAC name: 1,4,7,10-tetraoxacyclododecane
• IUPAC Traditional name: EOCT
• Synonyms: 1,4,7,10-四氧环十二烷; 1,4,7,10-Tetraoxacyclododecane

DATABASE IDS

• MDL Number: MFCD00005103
• Beilstein Number: 1363064
• PubChem SID: 24856850
• EC Number: 206-036-5
• CAS Number: 294-93-9

PROPERTIES

• Empirical Formula (Hill Notation): C8H16O4
• Grade: purum
• Purity: ≥98.0% (GC)
• Boiling Point: 61-70 °C/0.5 mmHg(lit.)
• Density: 1.089 g/mL at 25 °C(lit.)
• Flash Point: 113 °C
• Flash Point: 235.4 °F
• Melting Point: 16 °C(lit.)
• Refractive Index: n20/D 1.462
• Refractive Index: n20/D 1.463(lit.)
• GHS Signal Word: Danger
• GHS Hazard statements: H319-H330
• European Hazard Symbols: Highly toxic (T+)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• GHS Precautionary statements: P260-P284-P305 + P351 + P338-P310
• Risk Statements: 26
• RTECS: XF0550000
• Safety Statements: 28-36/37-45
• German water hazard class: 3

DETAILS

Description (English)

Other Notes
Aprotic "solvent" for alkali metals, the sodium solution is a strong reducing agent1; Phase transfer catalyst, complexing-agent for lithium2,3

Description (简体中文)

Other Notes
用于碱金属的非质子"溶剂"，其钠溶液为强还原剂1；相转移催化剂，锂的络合剂2,3