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About This Item
Empirical Formula (Hill Notation):
Cl2OS
CAS Number:
Molecular Weight:
118.97
UNSPSC Code:
12352307
EC Index Number:
231-748-8
NACRES:
NA.22
MDL number:
Grade:
synthesis grade
Form:
liquid
grade
synthesis grade
Quality Level
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
Identity (IR): passes test
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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
hcodes
supp_hazards
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
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.
Synthetic uses of thionyl chloride
El-Sakka IA and Hassan NA
Journal of Sulfur Chemistry, 26(1), 33-97 (2005)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 8081540100 | 04022536397627 |
| 8081540500 | 04022536397634 |
| 8081542500 | 04022536397658 |
| 8081549040 | 04022536657134 |
| 8081549300 | 04022536657141 |
| 8081541000 | 04022536397641 |

