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330655

Sigma-Aldrich

4-Chlorotetrahydropyran

96%

Synonym(s):

4-Chloro-tetrahydro-2H-pyran

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About This Item

Empirical Formula (Hill Notation):
C5H9ClO
CAS Number:
1768-64-5
Molecular Weight:
120.58
MDL number:
MFCD00074911
UNSPSC Code:
12352100
PubChem Substance ID:
24859875
NACRES:
NA.22

Assay

96%

refractive index

n20/D 1.462 (lit.)

bp

150 °C (lit.)

solubility

water: soluble(lit.)

density

1.114 g/mL at 25 °C (lit.)

SMILES string

ClC1CCOCC1

InChI

1S/C5H9ClO/c6-5-1-3-7-4-2-5/h5H,1-4H2

InChI key

DHRSKOBIDIDMJZ-UHFFFAOYSA-N

General description

4-Chlorotetrahydropyran is a commonly employed starting material in organic synthesis.

Application

4-Chlorotetrahydropyran was used in the synthesis of 3-chlorogutaric acid.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

114.8 °F - closed cup

Flash Point(C)

46 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
S53145-179
S53145
03521KH
11715HE
S35859

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Syntheses from 4-chlorotetrahydropyran
Stapp PR and Drake CA.
The Journal of Organic Chemistry, 36(4), 522-525 (1971)
Ursula Karges et al.
The Science of the total environment, 711, 134783-134783 (2019-12-11)
1,4-Dioxane, a cyclic ether that has been classified as a class 2B carcinogen by the US-EPA, is a substance of growing environmental concern because of its abundant occurrence in surface waters worldwide. Its high polarity and low biodegradability hamper its

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