Skip to Content
Merck
CN

Key Documents

View All Documentation

8.08154

Thionyl chloride

for synthesis

Synonym(s):

Thionyl chloride, Sulfurous acid dichloride, Sulfurous oxychloride

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
Cl2OS
CAS Number:
7719-09-7
Molecular Weight:
118.97
UNSPSC Code:
12352307
EC Index Number:
231-748-8
NACRES:
NA.22
MDL number:
MFCD00011449
Grade:
synthesis grade
Form:
liquid
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

synthesis grade

Quality Level

200

vapor pressure

121 hPa ( 20 °C)

form

liquid

potency

324 mg/kg LD50, oral (Rat)

bp

76 °C/1013 hPa

mp

-104.5 °C

density

1.64 g/cm3 at 20 °C

storage temp.

2-30°C

SMILES string

[S](=O)(Cl)Cl

InChI

1S/Cl2OS/c1-4(2)3

InChI key

FYSNRJHAOHDILO-UHFFFAOYSA-N

General description

Thionyl chloride is an inorganic acid chloride. It is mainly used as a chlorinating agent in organic synthesis for the production of organochlorine compounds.

Application

Thionyl chloride can be used as a catalyst to synthesize:
  • 4-(sulfinylamino)-1,2,4-triazole by reacting with 4-amino-1,2,4-triazole.
  • Isothiazolopyrimidines from aminouracils via cyclization reaction.
  • 1,2,6-triazine S-oxides by reacting with diimines via condensation reactions in the presence of pyridine.
  • 2-oxo-1,3,2-dioxathianes by condensation reaction with alkane-1,3-diols.
  • Cyclic sulfites by reacting with nitroglycols.
  • Microporous organic polymers by aldol self-condensation reaction of di and multiacetyl building blocks.

Analysis Note

Assay (argentometric): ≥ 99.0 %
Identity (IR): passes test

Still not finding the right product?

Explore all of our products under Thionyl chloride

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

target_organs

Respiratory system

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

supp_hazards

EUH014,EUH029

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Regulatory Information

新产品

This item has

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Synthetic uses of thionyl chloride
El-Sakka IA and Hassan NA
Journal of Sulfur Chemistry, 26(1), 33-97 (2005)

Global Trade Item Number

SKUGTIN
808154010004022536397627
808154050004022536397634
808154250004022536397658
808154904004022536657134
808154930004022536657141
808154100004022536397641