α-hydroxy-β,β-dimethyl-γ-butyrolactone

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: authoritative handbook

Data source

Reference

Reference Type:

review article or handbook

Title:

The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals (14th Edition - Version 14.4)

Author:

O'Neil, Maryadele J. et al.

Year:

2006

Bibliographic source:

© 2006, 2009 Merck & Co., Inc., © 2009 Knovel Corporation. All rights reserved.

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: no data

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

α-hydroxy-β,β-dimethyl-γ-butyrolactone

EC Number:

209-963-3

EC Name:

α-hydroxy-β,β-dimethyl-γ-butyrolactone

Cas Number:

599-04-2

Molecular formula:

C6H10O3

IUPAC Name:

(3R)-dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone

Constituent 2

Reference substance name:

(±)-dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-one

EC Number:

201-210-7

EC Name:

(±)-dihydro-3-hydroxy-4,4-dimethylfuran-2(3H)-one

Cas Number:

79-50-5

IUPAC Name:

3-hydroxy-4,4-dimethyldihydrofuran-2(3H)-one

Results and discussion

Melting / freezing point

Melting / freezing point 1

Melting / freezing pt.:

92 °C

Remarks on result:

other: D(−)-Form

Melting / freezing point 2

Melting / freezing pt.:

91 °C

Remarks on result:

other: L(+)-Form

Melting / freezing point 3

Melting / freezing pt.:

80 °C

Remarks on result:

other: DL-Form