Tetrahydropyran

• Catalog No.: 87470
• CAS Number: 142-68-7
• M. F.: C5H10O
• M. W.: 86.1323
• Purity: ≥98.0% (GC)

SYNONYMS

• Title: 四氢吡喃
• IUPAC name: oxane
• IUPAC Traditional name: tetrahydropyran
• Synonyms: 氧己环; Pentamethylene oxide

DATABASE IDS

• CAS Number: 142-68-7
• EC Number: 205-552-8
• Beilstein Number: 102436
• MDL Number: MFCD00006585

PROPERTIES

• Empirical Formula (Hill Notation): C5H10O
• Grade: purum
• Impurities: ≤0.5% water
• Purity: ≥98.0% (GC)
• Boiling Point: 88 °C(lit.)
• Density: 0.881 g/mL at 25 °C(lit.)
• Flash Point: -16 °C
• Flash Point: 3.2 °F
• Melting Point: -45 °C(lit.)
• Refractive Index: n20/D 1.42(lit.)
• Refractive Index: n20/D 1.420
• Vapor Density: 3 (vs air)
• GHS Signal Word: Danger
• GHS Hazard statements: H225-H315-H319-H335
• European Hazard Symbols: Flammable (F)
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• GHS Precautionary statements: P210-P261-P305 + P351 + P338
• RID/ADR: UN 1993 3/PG 2
• Risk Statements: 11-19-36/37/38
• Safety Statements: 9-16-26-33-36
• Supplemental Hazard Statements: May form explosive peroxides.
• Hazard Class: 3
• UN Number: 1993
• Packing Group: 2
• German water hazard class: 3