3,4-Dihydro-2H-pyran
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Grundinformationen
- CAS
110-87-2- Standard-SMILES
C1=COCCC1- InChIKey
BUDQDWGNQVEFAC-UHFFFAOYSA-N- Summenformel
- C5H8O
- Durchschnittliche Molmasse
- 84,12 g/mol
- Monoisotopische Masse
- 84,05751488
Überblick
Dihydro-2h-pyran appears as a clear colorless liquid with an ethereal odor. Less dense than water. Vapors heavier than air.
Namen und Bezeichner
- Bevorzugter Name
- 3,4-dihydro-2H-pyran
- IUPAC
- 3,4-dihydro-2H-pyran
- Lokaler Name
- 3,4-Dihydro-2H-pyran
- Englischer Name
- 3,4-Dihydro-2H-pyran
- Summenformel
- C5H8O
- Molmasse
- 84.12
Namen und Synonyme
3,4-Dihydro-2H-pyran110-87-2DIHYDROPYRAN3,4-Dihydropyran2,3-Dihydro-4H-pyran2H-3,4-Dihydropyran5,6-Dihydro-4H-pyran2H-Pyran, 3,4-dihydro-delta2-DihydropyranPyran, dihydro-DTXSID6041426T6V9N71IHX
Weitere Namen anzeigen
DHP3,4-Dihydro-2H-pyraneDIHYDROPYRANE3,4-Dihydro-2-pyran3,4-dihydro-2h-pyra
NSC-57860NSC-73472DTXCID4021426RefChem:910852,3-DIHYDRO-GAMMA-PYRAN203-810-4Dihydro-2H-pyran2,3-Dihydropyran
Datenbank-Bezeichner
- CAS
110-87-2、25512-65-6、3174-74-1- PubChem CID
- 8080
- DTXSID
DTXSID6041426- ChEMBL
CHEMBL3184439- UNII
- T6V9N71IHX
- EC Number
- 203-810-4
- Nikkaji
- J43.463I
Eigenschaften
Berechnete StruktureigenschaftenWird ergänzt
- XLogP
- 0,7
- Polarare Oberfläche (TPSA)
- 9,2 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 1
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 6
- Formalladung
- 0
- Komplexität
- 57
Experimentelle und physikochemische Eigenschaften
Chemical Classes
Other Classes -> Ethers, Other
Flammable agents - 3rd degree
SpringerMaterials PropertiesCoriolis coupling
LogP0.69
Density0.922 @ 19°C
Flash Point0 °F (NFPA, 2010)
Physical Description
Dihydro-2h-pyran appears as a clear colorless liquid with an ethereal odor. Less dense than water. Vapors heavier than air.
Liquid
Clear colorless liquid with an ethereal odor; [CAMEO] Unpleasant odor; [Alfa Aesar MSDS]
Physikochemische Eigenschaften
- Schmelzpunkt
- -70 °C · -70 °C (lit.)
- Siedepunkt
- 86 °C · 86 °C (lit.)
- Dichte
- 0.922 g/mL · 0.922 g/mL at 25 °C (lit.)
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Danger
H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P272, P280, P302+P352, P303+P361+P353, P305+P351+P338, P321, P332+P317, P333+P317, P337+P317, P362+P364, P370+P378, P403+P235, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 180 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Warning
H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
Gefahrenhinweise
Regulatory Information
Chemical: 2H-Pyran, 3,4-dihydro-
2H-Pyran, 3,4-dihydro- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2H-Pyran, 3,4-dihydro- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 29-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/12042
2H-Pyran, 3,4-dihydro-: HSNO Approval: HSR001129 Approved with controls
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
DOT LabelFlammable Liquid
Fire Hazards
Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Health Hazards
Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Chemie und Industrie
Verwendung und Herstellung
UsesPermitted for use as an inert ingredient in non-food pesticide products; [EPA] Used in organic syntheses; [REPROTOX]
U.S. Production2023: 75,000 - <500,000 lb
Industry UsesIntermediate
General Manufacturing Information
All Other Basic Organic Chemical Manufacturing
2H-Pyran, 3,4-dihydro-: ACTIVE
Anwendungen
VerwendenWidely used hydroxyl-protecting reagent3,4-Dihydro-2H-pyran is used as a hydroxyl-protecting reagent in organic synthesis. It acts as an intermediate in synthetic chemistry. It is used to protect various reactive functional groups. It is involved in the polymerization reaction either alone or with unsaturated compound and finds application in polymer industries. Further, it is employed in the preparation of bicyclic compounds of epoxide-fused, halo compounds and allenic alcohols.
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