1,7-heptanediol

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Structural formula
Structural formula of 1,7-heptanediol
General
Surname 1,7-heptanediol
other names
  • Heptamethylene glycol
  • 1,7-dihydroxyheptane
Molecular formula C 7 H 16 O 2
Brief description

light yellow liquid

External identifiers / databases
CAS number 629-30-1
EC number 211-085-0
ECHA InfoCard 100.010.078
PubChem 12381
Wikidata Q19885474
properties
Molar mass 132.20 g mol −1
Physical state

liquid

density

0.951 g cm −3 (25 ° C)

Melting point

17-19 ° C

boiling point

259 ° C

solubility

soluble in water

Refractive index

1.455 (20 ° C)

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

1,7-Heptanediol is a chemical compound from the group of alkanediols .

Extraction and presentation

1,7-heptanediol, by reduction of pimelic acid ( heptanedioic acid ) in a solvent such as tetrahydrofuran or ethanol are recovered.

properties

1,7-heptanediol is a light yellow clear liquid that is soluble in water.

use

1,7-Heptanediol is used as an intermediate in the manufacture of drugs and other chemical compounds. 1,7-dichloroheptane can be prepared by reaction with thionyl chloride . By reaction of 1,7-heptane with hydrobromic can 1,7-dibromoheptane be won.

Individual evidence

  1. ↑ a b c d e f g h i data sheet 1,7-heptanediol, 95% from Sigma-Aldrich , accessed on April 29, 2015 ( PDF ).
  2. ↑ a b Entry on 1,7-heptanediol at TCI Europe, accessed on April 29, 2015.
  3. ↑ a b Hua Li, Juan Liu, Jiang Zhu, Lei Zhao, Hongkai Wang, Yadong Zhang: Correlation and comparison for solubility of pimelic acid in different solvents. In: Russian Journal of Physical Chemistry A. 86, 2012, p. 314, doi : 10.1134 / S0036024412020148 .
  4. ↑ David Joseph Garfagnoli: Synthesis of Alpha-esters of 1,2,3-propanetricarboxylic Acid: GCMS Analysis ... 1984, p. 60 ( limited preview in Google Book search).
  5. ↑ Asian Journal of Chemistry Vol. 22, No. 9 (2010), 6945-6954, Hua Li, Jiang Zhu and Juan Liu: Mechanism and Kinetics of the Synthesis of 1,7-Dibromoheptane