δ-Valerolacton
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- CAS-Nr.
- 542-28-9
- Bezeichnung:
- δ-Valerolacton
- Englisch Name:
- delta-Valerolactone
- Synonyma:
- TETRAHYDRO-2H-PYRAN-2-ONE;δ-Valerolactone;tetrahydro-pyran-2-one;Oxan-2-one;D-VALEROLACTONE;5-Valerolactone;4-PENTANOLIDE;G-VALEROLACTONE;Tetrahydro-2-pyranone;TETRAHYDRO-2H-2-PYRANONE
- CBNumber:
- CB9853788
- Summenformel:
- C5H8O2
- Molgewicht:
- 100.12
- MOL-Datei:
- 542-28-9.mol
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δ-Valerolacton Eigenschaften
- Schmelzpunkt:
- -13 °C
- Siedepunkt:
- 230 °C
- Dichte
- 1.105 g/mL at 20 °C
- Dampfdichte
- 3.45 (vs air)
- Dampfdruck
- 8.8Pa at 20℃
- Brechungsindex
- n20/D 1.457(lit.)
- Flammpunkt:
- 212 °F
- storage temp.
- -20°C
- Löslichkeit
- Chloroform, Ethyl Acetate, Methanol
- Aggregatzustand
- Liquid
- Farbe
- Clear colorless to pale yellow
- Wasserlöslichkeit
- miscible
- BRN
- 106436
- Stabilität:
- Moisture Sensitive
- LogP
- 0 at 23℃
- CAS Datenbank
- 542-28-9(CAS DataBase Reference)
- NIST chemische Informationen
- 2H-Pyran-2-one, tetrahydro-(542-28-9)
- EPA chemische Informationen
- 2H-Pyran-2-one, tetrahydro- (542-28-9)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Kennzeichnung gefährlicher |
Xi |
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| R-Sätze: |
41 |
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| S-Sätze: |
26-39 |
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| WGK Germany |
3 |
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| RTECS-Nr. |
LU3580000 |
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| Hazard Note |
Irritant/Keep Cold |
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| TSCA |
Yes |
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| HS Code |
29322090 |
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| Bildanzeige (GHS) |
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| Alarmwort |
Achtung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H318 |
Verursacht schwere Augenschäden. |
Schwere Augenschädigung |
Kategorie 1 |
Achtung |
![GHS hazard pictograms]() src="/GHS05.jpg" width="20" height="20" /> |
P280, P305+P351+P338, P310 |
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| Sicherheit |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
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δ-Valerolacton Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R41:Gefahr ernster Augenschäden.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S39:Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
clear colorless to pale yellow liquid
Verwenden
δ-Valerolactone is a compound commonly used to synthesize copolyesters by means of lipase-catalyzed ring opening polymerization.
Definition
ChEBI: The simplest member of the class of delta-lactone that is tetrahydro-2H-pyran substituted by an oxo group at position 2.
läuterung methode
Purify the -lactone by repeated fractional distillation. IR: max 1750 (in CS2), 1732 (in CHCl3),1748 (in CCl4) and 1733 (in MeOH) cm-1 [Huisgen & Ott Tetrahedron 6 253 1959, Linstead & Rydon J Chem Soc 580 1933, Jones et al. Can J Chem 37 2007 1959]. [Beilstein 17 H 235, 17 II 287, 17 III/IV 4169,17/9 V 17.]
δ-Valerolacton Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
δ-Valerolacton Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 367)Lieferanten
542-28-9(δ-Valerolacton)Verwandte Suche:
Tetrahydrofuran
Spironolacton
D-Glucuronsäure, gamma-Lacton
Centchroman
Prasteron
D-Glucono-1,5-lacton
Epiandrosterone acetate
Naringin dihydrochalcone
γ-Valerolacton
Tetrahydro-4H-pyran-4-on
Chlorophacinon (ISO)
3,3,4,4,5,5-Hexafluordihydro-2H-pyran-2,6(3H)-dion
Dihydro-3,3-dimethyl-2H-pyran-2,6(3H)-dion
Decan-5-olid
Dodecan-5-olid
Glutarsureanhydrid
3-Methylglutarsaeureanhydrid
Cyclopentan-1,1-diessigsaeureanhydrid
- delta-Valerolactone, 2-Oxotetrahydro-2H-pyran
- Tetrahydro-2H-pyran-2-one 99%
- ^d-Valerolactone, 98%, May contain polyMer
- delta-Valerolactone, 99% 50GR
- delta-Valerolactone technical grade
- δ-Valerolactone, 98.5%, 98.5%
- δ- valerolactone (cyclopentyl lactone)
- DELTA-VALEROLACTONE
- FEMA 3103
- GAMMA-PENTANOLACTONE
- GAMMA-METHYL-GAMMA-BUTYROLACTONE
- delta-Valerolactone, may contain polymer: distil to remove
- 4-VALEROLACTONE
- VALEROLACTONE, GAMMA-
- 1,2-pyrone,tetrahydro-
- 1-Oxacyclohexan-2-one
- 2H-pyran-2-one,tetrahydro-
- 5-Hydroxypentanoic acid delta-lactone
- 5-pentanolide
- delta-pentalactone
- delta-Valeryllactone
- Pentanoic acid, 5-hydroxy-, delta-lactone
- Valeric acid, delta-hydroxy-, delta-lactone
- valericacid,δ-hydroxy-,lactone
- δ-Valero-lacton
- 5-Hydroxypentanoic acid lactone~delta-Pentanolactone~Tetrahydropyran-2-one
- delta-Velarolactone
- DELTA-VALEROLACTONE, TECH.
- delta-Valerolactone,99%,maycontainpolymer,distiltoremove
- i-pentanolactone
- i-valerolactone
- delta-Valerolactone 99%
- VALEROLACTONE, gamma-(SG)
- PENTANO-1,5-LACTONE
- δ-Valerolactone, 98%, may contain polymer: distill to remove
- 2-Oxotetrahydropyran
- d-Valeryllactone
- 2-Perhydropyranone
- 5-Hydroxypentanoic acid 1,5-lactone
- ^d-Valerolactone, 98%, may contain polymer: distill to remove
- delta-Valerolactone,99%
- delta-Valerolactone, 98%, may contain polymer
- distil to remove
- distilltoremove
- δ-Valerolactone ,98.5%
- 4-HYDROXYVALERIC ACID G-LACTONE
- delta-Valerolactone 542-28-9 5-valerolactone Tetrahydro-2H-2-pyranon 542-28-9
- delta-Valerolactone in stock 542-28-9 5-valerolactone Tetrahydro-2H-2-pyranon 542-28-9
- δ-Valerolactone, 98.5%, reagent grade
- δ-Valeryllactone
- Delta-Valerolactone ( DVL )
- δ-VaL
- delta-VALEROLACTONE Extra Pure
- D-VALEROLACTONE
- G-VALEROLACTONE
- 4-PENTANOLIDE
- TETRAHYDRO-2H-2-PYRANONE
- TETRAHYDRO-2H-PYRAN-2-ONE
