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Merck
CN

DX2091

Supelco

p-Dioxane

OmniSolv®

Synonym(s):

p-Dioxane, 1,4-Dioxane, 1

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About This Item

Linear Formula:
-O(CH2)2O(CH2)2-
CAS Number:
123-91-1
MDL number:
MFCD00006571
UNSPSC Code:
12191504
EC Index Number:
204-661-8
Assay:
≥99.9% (GC)
Technique(s):
HPLC: suitable
LC/MS: suitable
gas chromatography (GC): suitable
Bp:
101.5 °C/1013 hPa
Vapor pressure:
41 hPa ( 20 °C)

Key Documents

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vapor pressure

41 hPa ( 20 °C)

Quality Level

100

product line

OmniSolv®

Assay

≥99.9% (GC)

form

liquid

shelf life

12 mo. (from manufacture date)

technique(s)

HPLC: suitable
LC/MS: suitable
gas chromatography (GC): suitable

impurities

≤0.05% Water (H2O)
≤2 mg/L Peroxide (as H2O2)

evapn. residue

≤1 mg/L

color

clear colorless,





refractive index

n20/D 1.4206-1.4226

pH

6-8 (20 °C, 500 g/L in H2O)

bp

101.5 °C/1013 hPa

mp

12 °C

transition temp

flash point 11 °C

density

1.03 g/cm3 at 20 °C

UV cutoff

≤215 nm

UV absorption

λ: 215 nm Amax: ≤1.00
λ: 250 nm Amax: ≤0.300
λ: 300 nm Amax: ≤0.020
λ: 350 nm Amax: ≤0.005
λ: 400 nm Amax: ≤0.005

shipped in

ambient

storage temp.

no temp limit

SMILES string

O1CCOCC1

InChI

1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2

InChI key

RYHBNJHYFVUHQT-UHFFFAOYSA-N

General description

p-Dioxane, or 1,4-dioxane, is a cyclic organic compound that appears as a colorless, flammable liquid with a sweet odor. It is classified as a non-polar solvent and is widely used in various industrial applications because of its ability to dissolve a diverse range of organic compounds.

Application

OmniSolv®
p-dioxane is used as a solvent in
  • The synthesis of (Chloromethyl)dimethylphenylsilane from chloro(chloromethyl)dimethylsilane via zinc-catalyzed substitution reaction with phenylmagnesium bromide.
  • the synthesis of N-(2,2,2-trifluoro-1-hydroxyethyl)-acetamide from 2,2,2-trifluoro-1-methoxyethanol and acetamide.

Packaging

is packaged in 1L amber glass bottle
is packaged in 4L amber glass bottle

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Expiration dateExp 12 months from mfg dateAssay (GC)99.9% minBoiling range101-102°CEvaporation residue1mg/L maxFiltered through 0.2 µm filterTo pass testPeroxide (as H2O2)2mg/L maxRefractive index (n 20/D)1.4206-1.4226UV Abs. at 215 nm1.00AU maxUV Abs. at 250 nm0.300AU maxUV Abs. at 300 nm0.020AU maxUV Abs. at 350 nm0.005AU maxUV Abs. at 400 nm0.005AU maxUV Cut-off215nm maxWater (H2O)0.05% max

Legal Information

OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Statements

H225,H319,H335,H350

Hazard Classifications

Carc. 1B - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH019,EUH066

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

51.8 °F - closed cup

Flash Point(C)

11 °C - closed cup

Regulatory Information

新产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Zinc-catalyzed nucleophilic substitution reaction of chlorosilanes with organomagnesium reagents
Murakami, Kei and Yorimitsu.et.al.
The Journal of Organic Chemistry, 74, 1415-1417 (2009)
Hydrogen-bonding interactions of norharmane in mixtures of acetic acid with benzene, p-dioxane and acetonitrile
Tapia, MJ and Reyman,et.al.
Physical Chemistry Chemical Physics, 4, 3676-3683 (2002)
Deconstructing noncovalent Kelch-like ECH-associated protein 1 (Keap1) inhibitors into fragments to reconstruct new potent compounds
Pallesen, Jakob S and Narayanan,et.al.
Journal of Medicinal Chemistry, 64, 4623-4661 (2021)

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