ChemicalBook > CAS DataBase List > 2,5-Dimethyl-2,5-hexanediol

2,5-Dimethyl-2,5-hexanediol

Product Name
2,5-Dimethyl-2,5-hexanediol
CAS No.
110-03-2
Chemical Name
2,5-Dimethyl-2,5-hexanediol
Synonyms
2,5-DIMETHYLHEXANE-2,5-DIOL;2,5-Hexanediol, 2,5-dimethyl-;1,1,4,4-Tetramethyl-1,4-butanediol;nsc5595;ai3-20685;5-hexanediol;-2,5-hexanedioL;DiMethyl-2,5-hexan;dimethylhexanediol;2,5-Dimethyl-2,5-hex
CBNumber
CB3335426
Molecular Formula
C8H18O2
Formula Weight
146.23
MOL File
110-03-2.mol
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2,5-Dimethyl-2,5-hexanediol Property

Melting point:
86-90 °C (lit.)
Boiling point:
214-215 °C (lit.)
Density 
0,898 g/cm3
vapor pressure 
0.18Pa at 20℃
refractive index 
1.4429 (estimate)
Flash point:
126 °C
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
form 
Crystalline Flakes
pka
15.07±0.29(Predicted)
color 
White
Odor
mild camphor
Water Solubility 
SOLUBLE
BRN 
1361437
InChIKey
ZWNMRZQYWRLGMM-UHFFFAOYSA-N
LogP
0.21 at 23℃
CAS DataBase Reference
110-03-2(CAS DataBase Reference)
NIST Chemistry Reference
2,5-Hexanediol, 2,5-dimethyl-(110-03-2)
EPA Substance Registry System
2,5-Hexanediol, 2,5-dimethyl- (110-03-2)
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Safety

Safety Statements 
22-24/25
WGK Germany 
3
TSCA 
Yes
HS Code 
29053980
Hazardous Substances Data
110-03-2(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
143618
Product name
2,5-Dimethyl-2,5-hexanediol
Purity
97%
Packaging
100g
Price
$48.7
Updated
2024/03/01
Sigma-Aldrich
Product number
143618
Product name
2,5-Dimethyl-2,5-hexanediol
Purity
97%
Packaging
500g
Price
$101
Updated
2024/03/01
TCI Chemical
Product number
D1167
Product name
2,5-Dimethyl-2,5-hexanediol
Purity
>99.0%(GC)
Packaging
25g
Price
$20
Updated
2024/03/01
TCI Chemical
Product number
D1167
Product name
2,5-Dimethyl-2,5-hexanediol
Purity
>99.0%(GC)
Packaging
500g
Price
$77
Updated
2024/03/01
Alfa Aesar
Product number
A11984
Product name
2,5-Dimethyl-2,5-hexanediol, 97%
Packaging
100g
Price
$22.65
Updated
2024/03/01
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2,5-Dimethyl-2,5-hexanediol Chemical Properties,Usage,Production

Chemical Properties

Colorless or white crystalline flakes. M.P. 93°C. B.P. 213°C. Soluble in water (20°C 140g/L), miscible with alcohol and most oils. Faint, camphorlike odor.

Uses

2,5-Dimethyl-2,5-hexanediol is used as an intermediate in the preparation of 2.5-Dimethyl-2.5-bis(tertbutyl-peroxy)hexane to produce polyethylene copolymers and polyethylene rubbers. It is also could be used to prepared nickel-containing Complex Reducing Agents (termed NiCRA)[1].

Uses

2,5-Dimethyl-2,5-hexanediol was used in the synthesis of six- and seven-membered heterocyclic boron compounds containing intramolecular N-B bond.

Preparation

The raw materials 2,5-Dimethyl-3-hexyne-2,5-diol (37.4 g, 263 mmol), ethyl acetate (60 mL), and Pd/C catalyst (0.285 g, 2.63 mmol, 1 mol %) were added to an autoclave. The hydrogen gas was slowly added to 10 bar. When the hydrogenation reaction was performed for 12 hours and then removed the hydrogen gas. Finally, 2,5-Dimethyl-2,5-hexanediol is obtained by purification.

Synthesis Reference(s)

Synthesis, p. 165, 1981 DOI: 10.1055/s-1981-29377

General Description

2,5-Dimethyl-2,5-hexanediol on heteropoly acid catalyzed dehydration yields cyclic ethers via stereospecific intramolecular SN2 mechanism. It reacts with nitriles in concentrated sulfuric acid to yield Δ1-pyrrolines.

Purification Methods

Purify the diol by fractional crystallisation. Then the diol is dissolved in hot acetone, treated with activated charcoal, and filtered while hot. The solution is cooled and the diol is filtered off and washed well with cold acetone. The crystallisation process ia repeated several times, and the crystals are dried under a vacuum in a freeze-drying apparatus [Goates et al. J Chem Soc, Faraday Trans 1 78 3045 1982]. [Beilstein 1 IV 2600.]

References

[1] Feghouli G, et al. Activation of reducing agents. Sodium hydride containing complex reducing agents 29. Epimerization of alcohols by nickel-containing complex reducing agents (NiCRA). Tetrahedron Letters, 1988; 9: 285–290.

2,5-Dimethyl-2,5-hexanediol Preparation Products And Raw materials

Raw materials

2,5-Hexanediol Nickel 3-HEXYNE 3-Methyl butynol

Preparation Products

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2,5-Dimethyl-2,5-hexanediol Suppliers

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View Lastest Price from 2,5-Dimethyl-2,5-hexanediol manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
2,5-Dimethyl-2,5-hexanediol 110-03-2
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 mt
Release date
2024-11-22
hebei hongtan Biotechnology Co., Ltd
Product
2,5-Dimethyl-2,5-hexanediol 110-03-2
Price
US $30.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
2000kg
Release date
2024-05-15
Hebei Zhuanglai Chemical Trading Co Ltd
Product
2,5-Dimethyl-2,5-hexanediol 110-03-2
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20 ton
Release date
2024-11-18

110-03-2, 2,5-Dimethyl-2,5-hexanediolRelated Search:

Dimethyl ether ETHANE Dimethyl fumarate Dacthal Dimethyl sulfate 2,5-Hexanediol Dimethicone POLY(1 6-HEXAMETHYLENE ADIPATE) AVERAG& Dimethyl sulfoxide Dimethyl disulfide N,N-Dimethylformamide N,N-Dimethylacetamide Dimethyl sulfone Poly(dimethylsiloxane) Dimethyl carbonate 2-Methyl-2,4-pentanediol 2,5-Dimethyl-3-hexyne-2,5-diol PHORBOL 12-MYRISTATE 13-ACETATE

  • 1,1,4,4-Tetramethyl-1,4-butanediol
  • 2,5-dimethyl-5-hexanediol
  • 5-Hexanediol,2,5-dimethyl-2
  • DiMethyl-2,5-hexan
  • 2,5-Dimethyl-2,5-hex
  • 2,5-DiMethyl-2,5-hexanediol, 99% 250GR
  • 2,5-Dimethyl-2,5-hexanediol,99%
  • 2,5-DiMethyl-2,5-hexanediol, 99.5%
  • 5-hexanediol
  • 2, 5 - diMethyl - 2, 5 - diol
  • 2,5-Dimethyl-2,5-hexanediol 97%
  • ai3-20685
  • dimethylhexanediol
  • nsc5595
  • 2,5-DIHYDROXY-2,5-DIMETHYLHEXANE
  • 2,5-DIMETHYLHEXANE-2,5-DIOL
  • 2,5-DIMETHYLHEXAN-2,5-DIOL
  • 2,5-DIMETHYL-2,5-HEXANDIOL
  • 2,5-DIMETHYL-2,5-HEXANEDIOL
  • 2,5-Hexanediol, 2,5-dimethyl-
  • 2,5-DIMETHYLHEXANEDIOL
  • 2,5-DIMETHYLOHEXANEDIOL
  • 2，5-dimethyl-2，5-hexadiol
  • 7,12-dimethylbenzo[a]anthracene-5,6-dione
  • 2,5-Dimethyl-2,5-hexanediol &gt
  • 2,5-Dimethyl-2,5-hexanediol Basic information
  • -2,5-hexanedioL
  • 2,5-Dimethyl-2,5-hexanediol, ≥ 99.0%
  • 110-03-2
  • CH3CCH3OHCH2CH2CCH3OHCH3
  • CH32COHCH2CH2COHCH32
  • Building Blocks
  • Organic Building Blocks
  • Polyols
  • Oxygen Compounds
  • Organic Building Blocks
  • Oxygen Compounds
  • Polyols
  • Building Blocks
  • Chemical Synthesis
  • Organic Building Blocks
  • Oxygen Compounds
  • bc0001