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(±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on

DL-Pantolactone Struktur
79-50-5
CAS-Nr.
79-50-5
Bezeichnung:
(±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on
Englisch Name:
DL-Pantolactone
Synonyma:
PANTOLACTONE;3-Hydroxy-4,4-diMethyldihydrofuran-2(3H)-one;3-Hydroxy-4,4-dimethyldihydro-2(3H)-furanone;Ai3-23741;DL-LACTONE;de-Pantolactone;DL-PantolaCLone;DL-PANTOLACTONE;Einecs 201-210-7;PANTOLACTONE(DL-)
CBNumber:
CB6157722
Summenformel:
C6H10O3
Molgewicht:
130.14
MOL-Datei:
79-50-5.mol
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(±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on Eigenschaften

Schmelzpunkt:
74-78 °C (lit.)
Siedepunkt:
121°C/11mmHg(lit.)
Dichte
1.165±0.06 g/cm3(Predicted)
Flammpunkt:
122℃
storage temp. 
Sealed in dry,Room Temperature
Löslichkeit
H2O: soluble1g/10 mL, clear, colorless to almost colorless
pka
13.12±0.40(Predicted)
Aggregatzustand
Solid
Farbe
Colourless Gel to White to Off-White
BRN 
80958
Stabilität:
Unstable in Aqueous Solution
InChIKey
SERHXTVXHNVDKA-UHFFFAOYSA-N
CAS Datenbank
79-50-5(CAS DataBase Reference)
NIST chemische Informationen
2(3H)-furanone, dihydro-3-hydroxy-4,4-dimethyl-, (.+/-.)-(79-50-5)
EPA chemische Informationen
2(3H)-Furanone, dihydro-3-hydroxy-4,4-dimethyl- (79-50-5)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
R-Sätze: 36/37/38
S-Sätze: 22-24/25-37/39-26
WGK Germany  3
F  3-10-21
HS Code  29322090
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

(±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:

S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.

Verwenden

DL-α-Hydroxy-β,β-dimethyl-γ-butyrolactone (DL-pantolactone) may be used in the preparation of 3,5-dinitrobenzoyl-DL-pantolactone.

Synthesis Reference(s)

Journal of the American Chemical Society, 79, p. 3545, 1957 DOI: 10.1021/ja01570a064

(±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on Upstream-Materialien And Downstream Produkte

Upstream-Materialien

FUMING SULFURIC ACID Ethanol Aceton Formaldehyd Natriumcyanid Cyanwasserstoff 3-Hydroxy-2,2-dimethylpropionaldehyd Hydrogenchlorid Methanol Isobutyraldehyd Kaliumcyanid

Downstream Produkte

Dihydro-4,4-dimethylfuran-2,3-dion

(±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 289)Lieferanten
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79-50-5((±)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-on)Verwandte Suche:

Dimethylsulfoxid Poly(dimethylsiloxane) D-Glucono-1,5-lacton Dimethylphthalat 4-Methyloxetan-2-on α-Hydroxy-β,β-dimethyl-γ-butyrolacton 3,6-Bis[(4-chlor-2-phosphonophenyl)azo]-4,5-dihydroxynaphthalin-2,7-disulfonsure Dimethylsulfid Trioxysalen (-)-Corey lactone diol 2,6-Dimethyloct-7-en-2-ol N,N-Dimethylformamid D-Glucuronsäure, gamma-Lacton Dimethyl ether Dimethylfumarat Ethan Spironolacton N,N-Dimethylacetamid
  • 2(3H)-Furanone, dihydro-3-hydroxy-4,4-dimethyl-, (+-)-
  • DL-alpha-Hydroxy-beta,beta-dimethyl-alpha-butyrolactone
  • DL-ALPHA-HYDROXY-BETA,BETA-DIMETHYL-GAMME-BUTYROLACTONE
  • DL-LACTONE
  • DL-R-BUTYROLACTONE
  • DL-Pantolactone, Dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone, β,β-Dimethyl-α-hydroxy-γ-butyrolactone
  • 3-Amino-1-phenylurea hydrochloride
  • Hydrazinecarboxamide, N-phenyl-, monohydrochloride
  • de-Pantolactone
  • DL-Pantoic acid lactone
  • rac-3α*-Hydroxy-4,4-dimethyl-4,5-dihydrofuran-2(3H)-one
  • DL-γ-butyrolactone
  • DL-PANTOYL LACTONE 97%
  • Dihydro-3-hydroxy-4H-dimethyl-2[3H]-furanone
  • dl-α-hydroxy-β,β-dimethyl-γ-butyrolactone
  • β,β-dimethyl-α-hydroxy-γ-butyrolactone
  • DL(-)-2-HYDROXY-3,3-DIMETHYL-GAMMA-BUTYROLACTONE(DL-PANTOLACTONE)
  • Pantoicacid-lactone
  • DL-Pantoyl Lacyone
  • 4-dimethyl-dihydro-3-hydroxy-(+/-)-2(3h)-furanon
  • (1)-Dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-one
  • Ai3-23741
  • Einecs 201-210-7
  • DL-Pantolactone
  • Dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone DL-2-Hydroxy-3,3-dimethyl-gamma-butyrolactone DL-Pantoyl Lactone
  • DL-PantolaCLone
  • DL-alpha-Hydroxy-beta,beta-diMethyl-gaMMa-butyrolactone puruM, >=98.0% (T)
  • 3-HYDROXY-4,4-DIMETHYL-DIHYDRO-FURAN-2-ONE
  • 3-Hydroxy-4,4-dimethyldihydrofuran-2(3H)
  • (3S)-3-Hydroxy-4,4-dimethyloxolan-2-one
  • 3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE
  • LABOTEST-BB LT00233109
  • DL-2-HYDROXY-3,3-DIMETHYL-4-BUTANOLIDE
  • DL-2-HYDROXY-3,3-DIMETHYL-GAMMA-BUTYROLACTONE
  • DL-3,3-DIMETHYL-2-HYDROXY-GAMMA-BUTYROLACTONE
  • DL-1-HYDROXY-2,2-DIMETHYL-3-BUTYROLACTONE
  • DL-2,4-DIHYDROXY-3,3-DIMETHYLBUTYRIC ACID G-LACTONE
  • DL-ALPHA-HYDROXY-BETA,BETA-DIMETHYL-GAMMA-BUTYROLACTONE
  • DL-DIHYDRO-3-HYDROXY-4,4-DIMETHYL-2(3H)FURANONE
  • DL-PANTOYL LACTONE
  • DL-PANTOIC ACID G-LACTONE
  • DL-PANTOLACTONE
  • (+/-)-dihydro-3-hydroxy-4,4-dimethylfuran-2(3h)-one
  • BETA,BETA-DIMETHYL-ALPHA-HYDROXY-GAMMA-BUTYROLACTONE
  • PANTOLACTONE(DL-)
  • 2(3H)-Furanone, dihydro-3-hydroxy-4,4-dimethyl-, (±
  • DL-Pantolactone 95%
  • [5-(6-amino-2-fluoro-9-purinyl)-3,4-dihydroxy-2-oxolanyl]methyl dihydrogen phosphate
  • 3-(2-hydroxy-1,1-dimethyl-ethyl)oxiran-2-one
  • DL-Pantolactone>
  • (3S)-3-hydroxy-4,4-dimethyL
  • Dexpanthenol Impurity 9
  • "(+/-)-dihydro-3-hydroxy-4,4-dimethylfuran-2(3h)-one"
  • 3-Hydroxy-4,4-diMethyldihydrofuran-2(3H)-one
  • PANTOLACTONE
  • 3-Hydroxy-4,4-dimethyldihydro-2(3H)-furanone
  • 3-hydroxy-4,4-dimethyl-tetrahydrofuran-2-one
  • Calcium Pantothenate Impurity C
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